[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
** Changed in: linux (Ubuntu Yakkety) Status: In Progress => Incomplete ** Changed in: linux (Ubuntu) Status: In Progress => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: Incomplete Status in linux source package in Yakkety: Incomplete Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
Still getting slow boot and hangs with latest 4.8.0-37.39. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
The fix for bug 1649905 should have helped impove this issue. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
I booted to 4.8 again and saw the dmesg. This is the error: [3.375735] ... [ 12.768084] [drm:drm_atomic_helper_commit_cleanup_done [drm_kms_helper]] *ERROR* [CRTC:26:pipe A] flip_done timed out Apparently it is a known problem https://bbs.archlinux.org/viewtopic.php?id=218581 related to the Intel video driver in 4.8. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
So I did a little bisecting today on mainline x86_64 kernels with CONFIG_SLUB: v4.4 Startup finished in 2.718s (kernel) + 11.831s (userspace) = 14.549s v4.5 Startup finished in 2.707s (kernel) + 12.777s (userspace) = 15.484s v4.6-rc4-1018-g5a5f0792e98b Startup finished in 2.970s (kernel) + 13.641s (userspace) = 16.611s v4.6-3615-g1eccc6e1529e Startup finished in 3.005s (kernel) + 14.063s (userspace) = 17.069s v4.6-5396-g07b75260ebc2 Startup finished in 3.044s (kernel) + 14.932s (userspace) = 17.977s v4.6-5931-gf4c80d5a16eb Startup finished in 3.057s (kernel) + 13.429s (userspace) = 16.487s v4.6-6084-g78975f23cba0 Startup finished in 3.050s (kernel) + 13.903s (userspace) = 16.954s v4.6-5050-g18726ca8b34b Startup finished in 3.015s (kernel) + 13.510s (userspace) = 16.525s v4.6-5055-g6052b7880a95 Startup finished in 3.029s (kernel) + 13.519s (userspace) = 16.549s v4.6-5058-g76b342bdc71b Startup finished in 2.998s (kernel) + 14.179s (userspace) = 17.177s v4.6-5060-g801faf0db894 Startup finished in 3.064s (kernel) + 14.667s (userspace) = 17.732s v4.6-5061-g81ae6d03952c Startup finished in 3.057s (kernel) + 18.357s (userspace) = 21.414s v4.6-5073-g9cc3387fa29f Startup finished in 3.073s (kernel) + 17.976s (userspace) = 21.049s v4.6-5119-g682a3385e773 Startup finished in 3.089s (kernel) + 17.987s (userspace) = 21.077s v4.6-6266-ga05a70db34ba Startup finished in 3.037s (kernel) + 18.550s (userspace) = 21.588s v4.6-7135-g0eff4589c36e Startup finished in 3.008s (kernel) + 18.074s (userspace) = 21.082s v4.7-rc5-1395-g877fa9a42ddc Startup finished in 3.179s (kernel) + 19.147s (userspace) = 22.327s v4.8 Startup finished in 3.197s (kernel) + 20.836s (userspace) = 24.034s v4.9.7 Startup finished in 3.674s (kernel) + 20.034s (userspace) = 23.708s v4.9.7 + the two patches Startup finished in 3.518s (kernel) + 13.027s (userspace) = 16.546s What we can observe from this: The big bump came in https://github.com/torvalds/linux/commit/81ae6d03952c1bfb96e1a716809bd65e7cd14360 (or alternatively in https://github.com/torvalds/linux/commit/801faf0db8947e01877920e848a4d338dd7a99e7 for CONFIG_SLAB, if bz.k.o is trustworthy). This is likely fixed by https://github.com/torvalds/linux/commit/86d9f48534e800e4d62cdc1b5aaf539f4c1d47d6, https://github.com/torvalds/linux/commit/13583c3d3224508582ec03d881d0b68dd3ee8e10 and https://github.com/torvalds/linux/commit/89e364db71fb5e7fc8d93228152abfa67daf35fa. The last two are not in stable, though. Speaking of https://github.com/torvalds/linux/commit/86d9f48534e800e4d62cdc1b5aaf539f4c1d47d6, this went into v4.8.7 as https://github.com/torvalds/linux/commit/68adb469dd3b28513c5b548df3437f2bc1a83e43, so that may be the fix you were looking for in comment #65. There are also lots of small performance regressions here and there that may be difficult to bisect. A second in userspace between v4.4 and v4.5 and another second between v4.5 and v4.6. Some 300 ms in kernel between v4.5 and v4.6, 200 ms between v4.6 and v4.7 and another 300 ms between v4.8 and v4.9. That's here, on my .config and my hardware. Dimitrij has 10 seconds in kernel between v4.7 and v4.8-rc1, but I can't see anything like that here. (In this case you might want to look into dmesg if it's a general slowdown or there's one thing that blocks for 10 secs. I suspect there might be.) I think that these other slowdowns that I and Dimitrij and possibly others are experiencing are likely unrelated to the main issue here (https://bugzilla.kernel.org/show_bug.cgi?id=172981, https://bugzilla.kernel.org/show_bug.cgi?id=172991) and we'll need to bisect further ourselves. :-) ** Bug watch added: Linux Kernel Bug Tracker #172981 http://bugzilla.kernel.org/show_bug.cgi?id=172981 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8:
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
For completeness, the latest mainline. 4.10.0rc6 Startup finished in 15.387s (kernel) + 25.344s (userspace) = 40.731s We can definitely conclude something happens between 4.7.10 and 4.8.0rc1. Detailed bisection should happen there. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
I decided to test with some of the mainline kernel images posted at http://kernel.ubuntu.com/~kernel-ppa/mainline/ 4.6.4 Startup finished in 4.991s (kernel) + 23.504s (userspace) = 28.496s 4.6.6 Startup finished in 5.019s (kernel) + 24.044s (userspace) = 29.064s 4.6.7 Startup finished in 5.063s (kernel) + 24.008s (userspace) = 29.072s 4.7.0rc1 Startup finished in 6.260s (kernel) + 24.199s (userspace) = 30.460s ^^ we see the first small jump here in 4.7rc1 4.7.0rc7 Startup finished in 6.800s (kernel) + 22.748s (userspace) = 29.548s 4.7.10 Startup finished in 5.718s (kernel) + 23.185s (userspace) = 28.904s Startup finished in 6.632s (kernel) + 22.865s (userspace) = 29.498s 4.8.0rc1 Startup finished in 17.619s (kernel) + 23.272s (userspace) = 40.892s Startup finished in 17.364s (kernel) + 29.914s (userspace) = 47.278s ^^ first large jump in 4.8rc1 4.8.0 Startup finished in 16.631s (kernel) + 23.861s (userspace) = 40.493s -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
I had slow boot with 16.10 few months ago. I moved back to 16.04. Today I had time to test some of the kernels above from the bisection process. These are the results 4.4.0-59-generic# Ubuntu 16.04 official January 2017 Startup finished in 4.889s (kernel) + 28.001s (userspace) = 32.890s 4.6.0-040600-generic# from comment 29 ... actually from #34 Startup finished in 5.274s (kernel) + 23.561s (userspace) = 28.836s 4.6.0-040600-generic# comment 36 Startup finished in 5.111s (kernel) + 25.192s (userspace) = 30.304s 4.6.0-040600rc1-generic # comment 54 Startup finished in 4.979s (kernel) + 21.904s (userspace) = 26.883s 4.8.0-26-generic# official Ubuntu 16.10 at November 2016 Startup finished in 15.025s (kernel) + 35.067s (userspace) = 50.093s 4.8.0-29-generic# comment 61 Startup finished in 14.808s (kernel) + 32.516s (userspace) = 47.325s Startup finished in 15.674s (kernel) + 26.293s (userspace) = 41.967s 4.8.0-34-generic# Official 16.04 repo, apt install linux-generic-hwe-16.04-edge Startup finished in 15.717s (kernel) + 26.583s (userspace) = 42.301s Basically the two patches on my (old) laptop reduce the total boot from 50 to 40 something. Obviously there is another issue. On 4.8 kernels (with or without the two patches) I get a short freeze of 1-2 secs when I open a window of System Settings. I'd suggest we should continue the bisection that Joseph Salisbury started. We should continue after the kernel in comment 54 which is GOOD. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.as
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
Are you guys aware of any other patches that went to mainline and may affect this? I've been hit by this issue since 4.6/4.7-ish days and can still reproduce it with 4.9.7. The two patches do help, but it's far from perfect: 4.9.7: Startup finished in 3.498s (kernel) + 20.462s (userspace) = 23.961s 4.9.7 + https://github.com/torvalds/linux/commit/89e364db71fb5e7fc8d93228152abfa67daf35fa + https://github.com/torvalds/linux/commit/13583c3d3224508582ec03d881d0b68dd3ee8e10: Startup finished in 3.518s (kernel) + 13.027s (userspace) = 16.546s 4.4.28: Startup finished in 2.698s (kernel) + 11.761s (userspace) = 14.459s There's consistently a ~second difference in kernel and another ~second in userspace. It's not a statistical error, I checked. I think it is even more pronounced in shutdown, but I don't have exact measurements from that. (I don't use a Ubuntu kernel so I apologize for being slightly off- topic. If you're aware of an upstream issue tracking this, feel free to refer me to it. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions --
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
The patches we testing have now landed in mainline. Does this bug still happen on Yakkety with the latest updates? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
We did in fact test the yakkety kernel with those two patched on Oct 21, per comments 23 and 24. However, the test kernel I built with those two patches was 4.8.0-26. The last 4.8 based test kernel I posted was built with the two patches against Yakkety -proposed. That kernel is now at 4.8.0-29. That would suggest that another fix came in with the stable updates that in addition to those two patches fixes the bug. The next step is for me to check with upstream on the current status of the two patches. I'll see when they are expected to land in mainline, so we can cherry pick them into Yakkety. I'll investigate further and post and update. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
> http://kernel.ubuntu.com/~jsalisbury/lp1626436/yakkety-proposed- patched This is a GOOD kernel as well -- booting is almost as fast as with 4.4, and the load doesn't explode under sbuild either. I'm a bit confused now, I thought we already tried the two patches in isolation -- but I think *only* against 4.6 and/or 4.7, not against 4.8. But so much the better. ☺ Thanks for your efforts Joseph, much appreciated! -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
Yes, that result is unexpected. So it sounds like v4.9-rc5 without the patches is still bad, but adding the two patches fixes the bug. I built another -proposed Yakkety test kernel with those two patches. It can be downloaded from: http://kernel.ubuntu.com/~jsalisbury/lp1626436/yakkety-proposed-patched It may be that 4.9-rc5 has additional commits that are also needed. If this Yakkety test kernel is still bad, I'll review what additional commits are in -rc5. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
> I noticed the comment does not have the download link. It is: > http://kernel.ubuntu.com/~jsalisbury/lp1626436/mailine-with-two-commits/ Bazinga! Perhaps unexpectedly, this is a GOOD kernel -- boot speed is comparable with 4.4, there is no high load after booting any more, and shutdown is fast as well. Thanks! -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
The kernel in #57 did not include the patches, but the kernel in comment #59 is current mainline and it DOES have the patches. I noticed the comment does not have the download link. It is: http://kernel.ubuntu.com/~jsalisbury/lp1626436/mailine-with-two-commits/ I just wanted to confirm the mainline kernel still exhibits the bug both with and without the patches. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
ah, just 4 sounds fine indeed. I did test 4.9-rc5 yesterday already (see comment #57), just not sure if that includes "the" the two commits. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
We only have about 4 more kernels to test. We could try making changes to the changes with cgroups. We could even revert some of them. However, it could be hit or miss. A bisect will tell us exactly which commit started this, and then we can examine that commit to know what is going on. Just as a sanity check, I also built the v4.9-rc5 kernel with the two commits we've been adding for every bisected kernel. Can you test that kernel as well? Then I'll continue with the last few test kernels for the bisect. That mainline test kernel can be downloaded from: -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
> http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.9-rc5/ This still shows unchanged behaviour: slow boot and shutdown, and high load after boot. So unfortunately it didn't magically fix itself :( -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
Is there something which could help to cut down the bisect? I had a theory in comment 12 about the plethora of cgroup related uevents. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
Since the mainline kernel is now at v4.9-rc5, it might be worth giving it a test. If it fixes the boot slowness, time would be better spent looking for the fix, versus continuing a search on what broke it. V4.9-rc5 can be downloaded from: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.9-rc5/ -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
Ignore my last test kernel, I forgot to add the two patches. I'll build a new one. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
I built the next test kernel, up to the commit: caee57ec71e1a0cb50b6028c706cfe541dcb080a This kernel also has the two patches. The test kernel can be downloaded from: http://kernel.ubuntu.com/~jsalisbury/lp1626436/caee57ec71e1a0cb50b6028c706cfe541dcb080a Can you test that kernel and report back if it has the bug or not? I will build the next test kernel based on your test results. Thanks in advance -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
> http://kernel.ubuntu.com/~jsalisbury/lp1626436/e257ef55ce51d7ec399193ee85acda8b8759d930 Still GOOD. Thanks! -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
I built the next test kernel, up to the commit: e257ef55ce51d7ec399193ee85acda8b8759d930 This kernel also has the two patches. The test kernel can be downloaded from: http://kernel.ubuntu.com/~jsalisbury/lp1626436/e257ef55ce51d7ec399193ee85acda8b8759d930 Can you test that kernel and report back if it has the bug or not? I will build the next test kernel based on your test results. Thanks in advance -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
> http://kernel.ubuntu.com/~jsalisbury/lp1626436/58f8b094e96f12e899bf767fc658c165908065d4 GOOD -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
I built the next test kernel, up to the commit: 58f8b094e96f12e899bf767fc658c165908065d4 This kernel also has the two patches. The test kernel can be downloaded from: http://kernel.ubuntu.com/~jsalisbury/lp1626436/58f8b094e96f12e899bf767fc658c165908065d4 Can you test that kernel and report back if it has the bug or not? I will build the next test kernel based on your test results. Thanks in advance -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
> http://kernel.ubuntu.com/~jsalisbury/lp1626436/1acd010152138644f63d743e165161edc780fc32 GOOD -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
I built the next test kernel, up to the commit: 1acd010152138644f63d743e165161edc780fc32 This kernel also has the two patches. The test kernel can be downloaded from: http://kernel.ubuntu.com/~jsalisbury/lp1626436/1acd010152138644f63d743e165161edc780fc32 Can you test that kernel and report back if it has the bug or not? I will build the next test kernel based on your test results. Thanks in advance -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
> http://kernel.ubuntu.com/~jsalisbury/lp1626436/a0d3c7c5c07cfbe00ab89438ddf82482f5a99422 Still GOOD. I'm becoming a bit nervous, but I just re-tested 4.7rc1 again and it's still bad. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
I built the next test kernel, up to the commit: a0d3c7c5c07cfbe00ab89438ddf82482f5a99422 This kernel also has the two patches. The test kernel can be downloaded from: http://kernel.ubuntu.com/~jsalisbury/lp1626436/a0d3c7c5c07cfbe00ab89438ddf82482f5a99422 Can you test that kernel and report back if it has the bug or not? I will build the next test kernel based on your test results. Thanks in advance -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
> http://kernel.ubuntu.com/~jsalisbury/lp1626436/07b75260ebc2c789724c594d7eaf0194fa47b3be GOOD -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
I built the next test kernel, up to the commit: 07b75260ebc2c789724c594d7eaf0194fa47b3be This kernel also has the two patches. The test kernel can be downloaded from: http://kernel.ubuntu.com/~jsalisbury/lp1626436/07b75260ebc2c789724c594d7eaf0194fa47b3be Can you test that kernel and report back if it has the bug or not? I will build the next test kernel based on your test results. Thanks in advance -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
> The test kernel can be downloaded from: http://kernel.ubuntu.com/~jsalisbury/lp1626436/0efacbbaee1e94e9942da0912f5b46ffd45a74bd This is a GOOD kernel. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
I built the next test kernel, up to the same commit: 0efacbbaee1e94e9942da0912f5b46ffd45a74bd This kernel also has the two patches. The test kernel can be downloaded from: http://kernel.ubuntu.com/~jsalisbury/lp1626436/0efacbbaee1e94e9942da0912f5b46ffd45a74bd Can you test that kernel and report back if it has the bug or not? I will build the next test kernel based on your test results. Thanks in advance -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
> http://kernel.ubuntu.com/~jsalisbury/lp1626436/4a5219edcdae52bfb5eea0dfc2a7bd575961dad7 I do see the files now. Sorry for the delay, travel/sprint and all. This is a GOOD kernel. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
Can you see the files now? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
> http://kernel.ubuntu.com/~jsalisbury/lp1626436/4a5219edcdae52bfb5eea0dfc2a7bd575961dad7 this is empty -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
I built the another test kernel, up to the same commit: 4a5219edcdae52bfb5eea0dfc2a7bd575961dad7 This kernel also has the two patches. The test kernel can be downloaded from: http://kernel.ubuntu.com/~jsalisbury/lp1626436/4a5219edcdae52bfb5eea0dfc2a7bd575961dad7 Can you test that kernel and report back if it has the bug or not? I will build the next test kernel based on your test results. Thanks in advance -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
> I built the another test kernel, up to the same commit: a7fd20d1c476af4563e66865213474a2f9f473a4 This is GOOD. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
I built the another test kernel, up to the same commit: a7fd20d1c476af4563e66865213474a2f9f473a4 This kernel also has the two patches. The test kernel can be downloaded from: http://kernel.ubuntu.com/~jsalisbury/lp1626436/a7fd20d1c476af4563e66865213474a2f9f473a4 Can you test that kernel and report back if it has the bug or not? I will build the next test kernel based on your test results. Thanks in advance -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
> In the meantime, it might be worthwhile to test v4.9-rc2. It's available from: > http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.9-rc2/ Still slow boot/high load, i. e. BAD. > I built the another test kernel, up to the same commit: > 7afd16f882887c9adc69cd1794f5e5723217 That's GOOD. Thanks! -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
I built the another test kernel, up to the same commit: 7afd16f882887c9adc69cd1794f5e5723217 This kernel also has the two patches. The test kernel can be downloaded from: http://kernel.ubuntu.com/~jsalisbury/lp1626436 Can you test that kernel and report back if it has the bug or not? I will build the next test kernel based on your test results. Thanks in advance -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
Yes, I'll rebuild that test kernel with the two patches. The second patched does not apply cleanly due to where the bisect is in time currently. In the meantime, it might be worthwhile to test v4.9-rc2. It's available from: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.9-rc2/ -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
> I built the first test kernel, up to the following commit: > 7afd16f882887c9adc69cd1794f5e5723217 Like Florian, the result isn't unambiguous. It for sure boots much faster than 4.7/4.8 (~ 3s kernel + 5s userspace), but still much slower than 4.4. But this could be attributed to the #1 issue above. So I *think* this kernel is still "good" (but not quite as clearly as for Florian). If it isn't too much trouble, would it be possible to apply the two patches on every bisected kernel to make the results more distinct? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
Thanks for the update, Florian. Can you also test the kernel posted in comment #29, Martin? If you also see good boot speed, I'll mark that kernel as good and build the next one. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
Thanks Joseph! I now believe I'm seeing two different issues in 4.8 that are not in 4.4 and slow down my boot, which is very confusing. - #1: High number of kworkers (fixed in 4.8 using the two patches and bisected by Doug Smythies already) - #2: Unknown other issue. I've noticed that when compiling a simple cmake/ninja project using 6 compiler processes on my rather old 4-core CPU, some kernels show odd behaviour that might also slow down the boot process. When compiling that cmake project on 4.4, 4.6-7afd16f or 4.7-rc1, issue #2 does not exist. While compilation takes place on 4.8 (no matter if kworker patches are applied or not), my mouse cursor becomes sluggish and it takes a long time to just switch to another window in Unity 7. Compilation speed is unaffected though, so maybe just some kind of task switching problem, not a CPU utilization issue. So that makes it quite difficult to tell if any given kernel is good or bad by just looking at the boot time. As far as I can tell, this is the current list of kernels and the issues they have, where #2 was detected using the cmake compilation behaviour and #1 by the number of kworker processes after boot (should be ~35): 4.8 + patches: #2 4.8: #1, #2 4.7-rc1: #1 4.6-7afd16f: none 4.4: none 4.8 has about the same wall clock boot time as 4.7-rc1 in my case, while 4.8+patches is ~5 seconds faster, but that's hard to tell, since boot times vary by 2-3 seconds anyway. So #1 apparently dominates the slow down. I've only been able to get a "perfect" <10sec boot time from GRUB to lightdm with 4.4 and 4.6-7afd16f. So the order of boot speed is like this right now for me: 4.4|4.6-7afd16f < 4.8+patches < 4.8|4.7-rc1 Sorry for the long-winded comment, I just feel uncomfortable calling this kernel "good" or "bad" without explaining why 4.7-rc1 might actually be "good" on my system concerning issue #2. 4.6-7afd16f appears to be as "good" as 4.4 in any case. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-1
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
I started a kernel bisect between v4.6 final and v4.7-rc1. The kernel bisect will require testing of about 7-10 test kernels. I built the first test kernel, up to the following commit: 7afd16f882887c9adc69cd1794f5e5723217 The test kernel can be downloaded from: http://kernel.ubuntu.com/~jsalisbury/lp1626436 Can you test that kernel and report back if it has the bug or not? I will build the next test kernel based on your test results. Thanks in advance -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
** Changed in: linux (Ubuntu) Importance: Medium => High ** Changed in: linux (Ubuntu Yakkety) Importance: Medium => High ** Changed in: linux (Ubuntu) Status: Triaged => In Progress ** Changed in: linux (Ubuntu Yakkety) Status: Triaged => In Progress ** Changed in: linux (Ubuntu) Assignee: (unassigned) => Joseph Salisbury (jsalisbury) ** Changed in: linux (Ubuntu Yakkety) Assignee: (unassigned) => Joseph Salisbury (jsalisbury) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
@Florian, I can built the test kernels for the bisect. Per comments #17 and #19, we know that 4.6 is good and 4.7-rc1 is bad, so I'll bisect between those two versions. I'll build the first test kernel and post it shortly. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
So, as another datapoint, I have built the same package with sbuild on 4.4 and 4.8. I grabbed 4.4 from xenial, rebooted into it. built the same trival package that i built yesterday on 4.8 $ ( cd /home/smoser/ubuntu/logs/ && grep "^Build needed" smello_0.4~ppa1_amd64-2016-10-2*) smello_0.4~ppa1_amd64-2016-10-20T16:48:33Z.build:Build needed 00:02:34, 120k disc space smello_0.4~ppa1_amd64-2016-10-21T18:31:17Z.build:Build needed 00:00:32, 120k disc space So the difference there is that it took 32 seconds to build the package on 4.4 and 154 seconds on 4.8. I've not done any more investigation as to what all is slow, load does show high on 4.8 when doing an sbuid, and this isn't a matter of a download taking longer. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: Triaged Status in linux source package in Yakkety: Triaged Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
My boot time comparison: (Wall clock time from GRUB to lightdm ready for login) 4.4: 12.28s 4.8.0-26 + Patches (Joseph's kernel): 21.78s 4.8.0-22 (Yakkety): 25.06s This is with NetworkManager-wait-online.service enabled, which seems to take ~8s in my case. The attached file has systemd-analyze (blame|critical-chain) output for each boot. Seems like slowdowns are all over the place, with some exceptions like nmbd. nmbd takes 5.1s no matter which kernel I use. And apparmor.service behaves opposite to boot time in this case: When boot is slower, apparmor.service loads faster. Loading times after typing my password into lightdm appear to correlate with boot times, but I haven't measured them. Noticably slower with 4.8 compared to 4.4. I don't have enough time to learn how to compile Ubuntu kernel packages and start a bisection right now, but maybe I can start an attempt next week. My CPU is old / slow though, so that will probably take some time. ** Attachment added: "boot times.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+attachment/4766355/+files/boot%20times.txt -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: Triaged Status in linux source package in Yakkety: Triaged Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications abou
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
Thanks Joseph! I'm seeing the same effect described by Martin. Boot+lightdm+loading Unity 7 is not as fast as it used to be in 16.04. I need to compare timings (4.8 patched vs 4.8 vs 4.4) tomorrow to make sure, but I also feel like it's a little faster now with the patches applied. The number of kworker processes after boot has reduced drastically using the patched kernel, it's a sane number now (~30), not 1004 like when using the unpatched 4.8 kernel. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: Triaged Status in linux source package in Yakkety: Triaged Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
Thanks Florian and Joseph! With the two patches it's definitively a lot better! Boot times without NM and lightdm: 4.4: 1.5s 4.8.0-22 (zesty): 16.8s 4.8.0-26 (Joseph's kernel): 8.4s So still quite far from what we used to have, but already twice as fast as the current y/z kernel. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: Triaged Status in linux source package in Yakkety: Triaged Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
I built a Yakkety test kernel with those two patches. It can be downloaded from: http://kernel.ubuntu.com/~jsalisbury/lp1626436/ Can you test this kernel and see if it resolves this bug? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: Triaged Status in linux source package in Yakkety: Triaged Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
I'll build a test kernel with those two patches and post a link to it shortly. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: Triaged Status in linux source package in Yakkety: Triaged Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
Well, I guess the other patch is required as well for SLUB (not only SLAB as I assumed at first): https://patchwork.kernel.org/patch/9361853/ -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: Triaged Status in linux source package in Yakkety: Triaged Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
My problem is probably the same that Doug Smythies described in bug 1626564 . I used the "echo workqueue:workqueue_queue_work > /sys/kernel/debug/tracing/set_event" method and had about 1000 work items enqueued by "memcg_kmem_cache_create_func" all at pretty much the same time, which correlates nicely with the 1000 kworker processes I see after boot. If Martin has the same issue with lots of kworkers (I'm still not quite sure?), this might be the same issue. So I suspect the bad commit might be: 81ae6d03952c1bfb96e1a716809bd65e7cd14360 "mm/slub.c: replace kick_all_cpus_sync() with synchronize_sched() in kmem_cache_shrink()" according to https://bugzilla.kernel.org/show_bug.cgi?id=172991 This commit was released in Linux 4.7. This patch might fix the issue, but I haven't tested it: https://patchwork.kernel.org/patch/9359271/ ** Bug watch added: Linux Kernel Bug Tracker #172991 http://bugzilla.kernel.org/show_bug.cgi?id=172991 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: Triaged Status in linux source package in Yakkety: Triaged Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
> 4.7-rc1: http://kernel.ubuntu.com/~kernel- ppa/mainline/v4.7-rc1-yakkety/ bad Thanks Joseph for taking this! -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: Triaged Status in linux source package in Yakkety: Triaged Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
Thanks for testing. We need to narrow it down a bit more by testing some of the v4.7 release candidates. Can you test v4.7-rc1? It can be downloaded from: 4.7-rc1: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.7-rc1-yakkety/ -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: Triaged Status in linux source package in Yakkety: Triaged Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
> 4.5 final: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.5-wily/ good > 4.6 final: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.6-yakkety/ good > 4.7 final: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.7/ bad -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: Triaged Status in linux source package in Yakkety: Triaged Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
I'd like to perform a bisect to figure out what commit caused this regression. We need to identify the earliest kernel where the issue started happening as well as the latest kernel that did not have this issue. Can you test the following kernels and report back? We are looking for the first kernel version that exhibits this bug: 4.5 final: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.5-wily/ 4.6 final: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.6-yakkety/ 4.7 final: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.7/ 4.8-rc1: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.8-rc1/ You don't have to test every kernel, just up until the kernel that first has this bug. Thanks in advance! ** Also affects: linux (Ubuntu Yakkety) Importance: Undecided Status: New ** Changed in: linux (Ubuntu Yakkety) Importance: Undecided => Medium ** Changed in: linux (Ubuntu Yakkety) Status: New => Triaged ** Tags added: performing-bisect -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: Triaged Status in linux source package in Yakkety: Triaged Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
** Description changed: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: - sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm + sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: -474ms postfix@-.service -395ms lxd-containers.service -305ms networking.service + 474ms postfix@-.service + 395ms lxd-containers.service + 305ms networking.service 4.8: - 4.578s postfix@-.service - 7.300s lxd-containers.service - 6.285s networking.service + 4.578s postfix@-.service + 7.300s lxd-containers.service + 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. - - This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). + This is much less noticeable in the running system. There is no + immediate feeling of sluggishness (although my system is by and large + idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous - loads (~ 250) under 4.8, while it's around 4 or 5 under 4.8. But that + loads (~ 250) under 4.8, while it's around 4 or 5 under 4.4. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: - USERPID ACCESS COMMAND - /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio - /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio - /dev/snd/controlC0: martin 3049 F pulseaudio + USERPID ACCESS COMMAND + /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio + /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio + /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: - TERM=linux - PATH=(custom, no user) - XDG_RUNTIME_DIR= - LANG=de_DE.UTF-8 - SHELL=/bin/bash + TERM=linux + PATH=(custom, no user) + XDG_RUNTIME_DIR= + LANG=de_DE.UTF-8 + SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: - linux-restricted-modules-4.8.0-11-generic N/A - linux-backports-modules-4.8.0-11-generic N/A - linux-firmware1.161 + linux-restricted-modules-4.8.0-11-generic N/A + linux-backports-modules-4.8.0-11-generic N/A + linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: Triaged Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
This is what I get right after boot and login into Unity 7 (executed in Gnome Terminal): $ ps aux | grep kworker | wc -l 1004 Kernel is 4.8.0-22-generic. After a few minutes, only 21 kworkers remain. Load after 4 minutes is not excessive (1244 sleeping processes), forgot to check load right after boot: up 4 min, 1 user, load average: 1,01, 1,79, 0,94 I'm not sure if it is of any help, but I've attached the output of "ps aux | grep kworker". ** Attachment added: "ps aux | grep kworker" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+attachment/4763631/+files/kworkers -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: Triaged Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.8. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
Confirmed with 4.8.0-040800.201610022031 from http://kernel.ubuntu.com /~kernel-ppa/mainline/v4.8/ -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: Triaged Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.8. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
Same here, downgrading to 4.4 from Xenial improved the situation (boot still feels a little slower than Xenial though, maybe because of the NetworkManager bug). I use a 7 years old desktop computer based on a Gigabyte motherboard and AMD Phenom II X4 955 CPU, So it's not Thinkpad- related. (From GRUB to lightdm used to be 7 seconds in 16.04, but using Kernel 4.8 and the new network manager it feels more like 20 secs. Also, the Unity 7+Chromium launch used to take just very few seconds, now it's a noticable delay with only the wallpaper showing, no matter which kernel I use, so that's unrelated. Anyway, booting my computer has just become a lot less fun even though I removed Apache 2 and Tomcat. :( ) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: Triaged Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.8. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
This could potentially be related to changes with cgroups -- creating them did not cause any uevent in 4.4, but with 4.8 they do: sudo systemctl stop systemd-timesyncd udevadm monitor -k # in another terminal sudo systemctl start systemd-timesyncd KERNEL[393.260769] add /kernel/slab/:atA-192/cgroup/dentry(1623:systemd-timesyncd.service) (cgroup) KERNEL[393.261031] add /kernel/slab/inode_cache/cgroup/inode_cache(1623:systemd-timesyncd.service) (cgroup) KERNEL[393.261850] add /kernel/slab/shmem_inode_cache/cgroup/shmem_inode_cache(1623:systemd-timesyncd.service) (cgroup) KERNEL[393.262358] add /kernel/slab/:tA-192/cgroup/cred_jar(1623:systemd-timesyncd.service) (cgroup) KERNEL[393.262636] add /kernel/slab/proc_inode_cache/cgroup/proc_inode_cache(1623:systemd-timesyncd.service) (cgroup) KERNEL[393.452990] add /kernel/slab/:tA-0001024/cgroup/mm_struct(1623:systemd-timesyncd.service) (cgroup) KERNEL[393.453082] add /kernel/slab/:tA-200/cgroup/vm_area_struct(1623:systemd-timesyncd.service) (cgroup) KERNEL[393.453251] add /kernel/slab/:tA-064/cgroup/anon_vma_chain(1623:systemd-timesyncd.service) (cgroup) KERNEL[393.453369] add /kernel/slab/anon_vma/cgroup/anon_vma(1623:systemd-timesyncd.service) (cgroup) KERNEL[393.456909] add /kernel/slab/sock_inode_cache/cgroup/sock_inode_cache(1623:systemd-timesyncd.service) (cgroup) KERNEL[393.457974] add /kernel/slab/:t-256/cgroup/kmalloc-256(1623:systemd-timesyncd.service) (cgroup) KERNEL[393.458205] add /kernel/slab/:t-512/cgroup/kmalloc-512(1623:systemd-timesyncd.service) (cgroup) KERNEL[393.460718] add /kernel/slab/:tA-0003648/cgroup/task_struct(1623:systemd-timesyncd.service) (cgroup) KERNEL[393.462292] add /kernel/slab/:tA-128/cgroup/pid(1623:systemd-timesyncd.service) (cgroup) KERNEL[393.465448] add /kernel/slab/:t-0001024/cgroup/kmalloc-1024(1623:systemd-timesyncd.service) (cgroup) Which means that there will be a corresponding number of udev workers running. At boot there is a *lot* of cgroup action due to lots of services being started, while this is relatively quiet during runtime. This is consistent with a slow boot but normal behaviour/feeling at runtime. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: Triaged Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.8. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=d
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
For the record, I tried Joseph's test bisect kernel in bug 1627108, and this does not fix it, so this is not a duplicate of bug 1627108: 4.4.0-9136 (previous yakkety): 2.849s (kernel) + 4.639s (userspace) 4.8.0-19 (current yakkety): 5.145s (kernel) + 11.825s (userspace) 4.7.0-040700rc3 (from Joseph): 3.735s (kernel) + 14.810s (userspace) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: Triaged Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.8. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
Still confirmed with yesterday's 4.8.0-19.21. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: Triaged Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.8. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
I marked the "affects me too" button at the top, but just wanted to add that we're seeing slow boots on EC2 also. With the latest yakkety AMI on ec2 (ami-1bc5820c, us-east-1, m4.large) first and subsequent boots are are much slower than expected. Top 5 in the blame: $ systemd-analyze blame 2min 6.384s cloud-init.service 14.945s cloud-init-local.service 5.595s keyboard-setup.service 4.079s dev-xvda1.device 2.587s cloud-config.service -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: Triaged Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.8. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
Unduplicating. This still happens with 4.8.0-17 from the PPA, both the slow boots and the high load times. It got a fair bit better, though (load of ~ 35 instead of ~ 250), but still a huge regression compared to 4.4. ** This bug is no longer a duplicate of bug 1626564 4.8 regression: SLAB is being used instead of SLUB ** Changed in: linux (Ubuntu) Status: In Progress => Triaged -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: Triaged Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.8. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
*** This bug is a duplicate of bug 1626564 *** https://bugs.launchpad.net/bugs/1626564 As far as I understand Andy, bug 1626564 is the root cause, thus duping. ** This bug has been marked a duplicate of bug 1626564 4.8 regression: SLAB is being used instead of SLUB -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.8. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
For the record, Andy already has/knows the fix for this. ** Changed in: linux (Ubuntu) Status: Confirmed => In Progress -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: In Progress Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.8. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
happens to me as well, on XPS 13 - 2013. Ubuntu always loaded before the "second dot" became orange. Now it fills up 15 dots before loading the login screen, and happened after upgrading 4.4 -> 4.8. Everything else works ok. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: Confirmed Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.8. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Tags added: kernel-da-key -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: Confirmed Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.8. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
I do not see this in QEMU (even with -smp 4), only on my laptop. At this point I'm not sure if it is specific to my ThinkPad X230 or happens for others too. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: Confirmed Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.8. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
Confirmed with 4.8.0-14.15-generic from yakkety-proposed. Immediately after boot the system load is also reported as ~ 250, and then slowly goes down towards zero. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: Confirmed Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.8. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1626436] Re: [4.8 regression] boot has become very slow
** Tags added: kernel-4.8 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1626436 Title: [4.8 regression] boot has become very slow Status in linux package in Ubuntu: New Bug description: With yakkety's recent update from linux 4.4 to 4.8 booting has become a lot slower. It's not one service in particular, but without "quiet" and "splash" you can now easily read every single line instead of that whole wall of text zipping by. It now takes over 20s instead of ~10 seconds to boot. This is even more dramatic when factoring out the recent boot hang of NetworkManager (bug 1622893) and disabling lightdm: sudo systemctl mask NetworkManager NetworkManager-wait-online lightdm then booting with 4.4 takes 1.5s and with 4.8 19.5s (!). Some excerps from systemd-analyze blame: 4.4: 474ms postfix@-.service 395ms lxd-containers.service 305ms networking.service 4.8: 4.578s postfix@-.service 7.300s lxd-containers.service 6.285s networking.service I attach the full outputs of critical-chain and analyze for 4.4 and 4.8 for reference. This is much less noticeable in the running system. There is no immediate feeling of sluggishness (although my system is by and large idle). I compared the time of sbuilding colord under similar circumstances (-j4, building on tmpfs, thus no hard disk delays; running with fully pre-loaded apt-cacher-ng thus no random network delays), and with 4.4 it takes 6.5 minutes and with 4.8 it takes 7.5. So that got a bit slower, but much less dramatically than during boot, so this is either happening when a lot of processes run in parallel, or is perhaps related to setting up cgroups. One thing I noticed that during sbuild in 4.8 "top" shows ridiculous loads (~ 250) under 4.8, while it's around 4 or 5 under 4.8. But that doesn't reflect in actual sluggishness, so this might be just an unrelated bug. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-11-generic 4.8.0-11.12 ProcVersionSignature: Ubuntu 4.8.0-11.12-generic 4.8.0-rc6 Uname: Linux 4.8.0-11-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0c: martin 3049 F...m pulseaudio /dev/snd/pcmC0D0p: martin 3049 F...m pulseaudio /dev/snd/controlC0: martin 3049 F pulseaudio Date: Thu Sep 22 09:42:56 2016 EcryptfsInUse: Yes MachineType: LENOVO 2324CTO ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-11-generic.efi.signed root=UUID=f86539b0-3a1b-4372-83b0-acdd029ade68 ro rootflags=subvol=@ systemd.debug-shell RelatedPackageVersions: linux-restricted-modules-4.8.0-11-generic N/A linux-backports-modules-4.8.0-11-generic N/A linux-firmware1.161 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ET95WW (2.55 ) dmi.board.asset.tag: Not Available dmi.board.name: 2324CTO dmi.board.vendor: LENOVO dmi.board.version: 0B98401 Pro dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ET95WW(2.55):bd07/09/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvr0B98401Pro:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2324CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626436/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
