[Kernel-packages] [Bug 1264346] Re: machine very slow with ondemand governor
** Description changed: - On my laptop with this CPU: - - model name : Intel(R) Core(TM) i7-2640M CPU @ 2.80GHz - - I am using the ondemand governor: - - $ cat /sys/devices/system/cpu/c*/cpufreq/scaling_governor + After a suspend/resume using the ondemand governor the system is very slow to answer some inputs. The text output pauses for several seconds while I am typing this text. Trying to scroll a firefox window takes several seconds. Switching tabs in firefox takes several seconds: + cat /sys/devices/system/cpu/c*/cpufreq/scaling_governor ondemand ondemand ondemand ondemand - and the system is very slow to answer some inputs: - - the text output pauses for several seconds while I am typing this text - - trying to scroll a firefox window takes several seconds - - switching tabs in firefox takes several seconds - - ... - - Setting the governor to performance fixes this problem. - - Note that this bug does not reveal itself immediately after boot. It - takes a suspend/resume to show up. + WORKAROUND: Setting the governor to performance fixes this problem. ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: linux-image-3.11.0-15-generic 3.11.0-15.23 ProcVersionSignature: Ubuntu 3.11.0-15.23-generic 3.11.10 Uname: Linux 3.11.0-15-generic x86_64 NonfreeKernelModules: wl ApportVersion: 2.12.5-0ubuntu2.2 Architecture: amd64 AudioDevicesInUse: - USERPID ACCESS COMMAND - /dev/snd/controlC0: bonnaudl 2373 F pulseaudio + USERPID ACCESS COMMAND + /dev/snd/controlC0: bonnaudl 2373 F pulseaudio Date: Thu Dec 26 18:17:23 2013 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=cf81afe7-8427-45fa-9149-c11d060a5a26 InstallationDate: Installed on 2013-04-27 (243 days ago) InstallationMedia: Ubuntu 13.04 Raring Ringtail - Release amd64 (20130424) MachineType: Dell Inc. Latitude E6520 MarkForUpload: True ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-15-generic root=UUID=749a9901-bdd3-4b5f-b80e-69414667e058 ro quiet splash vt.handoff=7 RelatedPackageVersions: - linux-restricted-modules-3.11.0-15-generic N/A - linux-backports-modules-3.11.0-15-generic N/A - linux-firmware 1.116 + linux-restricted-modules-3.11.0-15-generic N/A + linux-backports-modules-3.11.0-15-generic N/A + linux-firmware 1.116 SourcePackage: linux UpgradeStatus: Upgraded to saucy on 2013-10-01 (86 days ago) dmi.bios.date: 02/28/2012 dmi.bios.vendor: Dell Inc. dmi.bios.version: A12 dmi.board.name: 0NVF5K dmi.board.vendor: Dell Inc. dmi.board.version: A01 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA12:bd02/28/2012:svnDellInc.:pnLatitudeE6520:pvr01:rvnDellInc.:rn0NVF5K:rvrA01:cvnDellInc.:ct9:cvr: dmi.product.name: Latitude E6520 dmi.product.version: 01 dmi.sys.vendor: Dell Inc. ** Tags added: bios-outdated-a19 -- 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/1264346 Title: [Dell Latitude E6520] After suspend, machine very slow with ondemand governor Status in “linux” package in Ubuntu: Incomplete Bug description: After a suspend/resume using the ondemand governor the system is very slow to answer some inputs. The text output pauses for several seconds while I am typing this text. Trying to scroll a firefox window takes several seconds. Switching tabs in firefox takes several seconds: cat /sys/devices/system/cpu/c*/cpufreq/scaling_governor ondemand ondemand ondemand ondemand WORKAROUND: Setting the governor to performance fixes this problem. ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: linux-image-3.11.0-15-generic 3.11.0-15.23 ProcVersionSignature: Ubuntu 3.11.0-15.23-generic 3.11.10 Uname: Linux 3.11.0-15-generic x86_64 NonfreeKernelModules: wl ApportVersion: 2.12.5-0ubuntu2.2 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: bonnaudl 2373 F pulseaudio Date: Thu Dec 26 18:17:23 2013 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=cf81afe7-8427-45fa-9149-c11d060a5a26 InstallationDate: Installed on 2013-04-27 (243 days ago) InstallationMedia: Ubuntu 13.04 Raring Ringtail - Release amd64 (20130424) MachineType: Dell Inc. Latitude E6520 MarkForUpload: True ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-15-generic root=UUID=749a9901-bdd3-4b5f-b80e-69414667e058 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.11.0-15-generic N/A linux-backports-modules-3.11.0-15-generic N/A linux-firmware 1.116 SourcePackage: linux UpgradeStatus: Upgraded to saucy on 2013-10-01 (86 days ago) dmi.bios.date: 02/28/2012 dmi.bios.vendor: Dell Inc. dmi.bios.version: A12 dmi.board.name:
[Kernel-packages] [Bug 1264346] Re: machine very slow with ondemand governor
Laurent Bonnaud, thank you for reporting this and helping make Ubuntu better. As per your https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1264346/+attachment/3936150/+files/BootDmesg.txt : [0.00] ACPI BIOS Warning (bug): 32/64X FACS address mismatch in FADT - 0xCABD4E40/0xCABD4D40, using 32 (20130517/tbfadt-522) ... [0.062613] perf_event_intel: PEBS disabled due to CPU errata, please upgrade microcode ... [0.113838] [Firmware Bug]: ACPI: BIOS _OSI(Linux) query ignored ... [1.833400] [drm] Wrong MCH_SSKPD value: 0x16040307 [1.833403] [drm] This can cause pipe underruns and display issues. [1.833404] [drm] Please upgrade your BIOS to fix this. Hence, as per http://www.dell.com/support/drivers/us/en/19/Product/latitude-e6520 an update is available for your BIOS (A19). If you update to this following https://help.ubuntu.com/community/BiosUpdate , does it change anything? If it doesn't, could you please both specify what happened, and just provide the output of the following terminal command: sudo dmidecode -s bios-version sudo dmidecode -s bios-release-date Please note your current BIOS is already in the Bug Description, so posting this on the old BIOS would not be helpful. For more on BIOS updates and linux, please see https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette . Thank you for your understanding. ** Changed in: linux (Ubuntu) Importance: Undecided = Medium ** Changed in: linux (Ubuntu) Status: Confirmed = Incomplete ** Summary changed: - machine very slow with ondemand governor + [Dell Latitude E6520] After suspend, machine very slow with ondemand governor -- 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/1264346 Title: [Dell Latitude E6520] After suspend, machine very slow with ondemand governor Status in “linux” package in Ubuntu: Incomplete Bug description: After a suspend/resume using the ondemand governor the system is very slow to answer some inputs. The text output pauses for several seconds while I am typing this text. Trying to scroll a firefox window takes several seconds. Switching tabs in firefox takes several seconds: cat /sys/devices/system/cpu/c*/cpufreq/scaling_governor ondemand ondemand ondemand ondemand WORKAROUND: Setting the governor to performance fixes this problem. ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: linux-image-3.11.0-15-generic 3.11.0-15.23 ProcVersionSignature: Ubuntu 3.11.0-15.23-generic 3.11.10 Uname: Linux 3.11.0-15-generic x86_64 NonfreeKernelModules: wl ApportVersion: 2.12.5-0ubuntu2.2 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: bonnaudl 2373 F pulseaudio Date: Thu Dec 26 18:17:23 2013 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=cf81afe7-8427-45fa-9149-c11d060a5a26 InstallationDate: Installed on 2013-04-27 (243 days ago) InstallationMedia: Ubuntu 13.04 Raring Ringtail - Release amd64 (20130424) MachineType: Dell Inc. Latitude E6520 MarkForUpload: True ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-15-generic root=UUID=749a9901-bdd3-4b5f-b80e-69414667e058 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.11.0-15-generic N/A linux-backports-modules-3.11.0-15-generic N/A linux-firmware 1.116 SourcePackage: linux UpgradeStatus: Upgraded to saucy on 2013-10-01 (86 days ago) dmi.bios.date: 02/28/2012 dmi.bios.vendor: Dell Inc. dmi.bios.version: A12 dmi.board.name: 0NVF5K dmi.board.vendor: Dell Inc. dmi.board.version: A01 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA12:bd02/28/2012:svnDellInc.:pnLatitudeE6520:pvr01:rvnDellInc.:rn0NVF5K:rvrA01:cvnDellInc.:ct9:cvr: dmi.product.name: Latitude E6520 dmi.product.version: 01 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1264346/+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 1264346] Re: machine very slow with ondemand governor
Running frequency_governors_test sheds some light on this bug because it exposes this error: ERROROn demand performance vs maximum of 380.0% is not within 10.0% margin # /usr/lib/checkbox/bin/frequency_governors_test 2013-12-26 18:15:54 INFO System Capabilites: 2013-12-26 18:15:54 INFO - 2013-12-26 18:15:54 INFO System has 4 cpus 2013-12-26 18:15:54 INFO Supported CPU Frequencies: 2013-12-26 18:15:54 INFO 2801 MHz 2013-12-26 18:15:54 INFO 2800 MHz 2013-12-26 18:15:54 INFO 2600 MHz 2013-12-26 18:15:54 INFO 2400 MHz 2013-12-26 18:15:54 INFO 2200 MHz 2013-12-26 18:15:54 INFO 2000 MHz 2013-12-26 18:15:54 INFO 1800 MHz 2013-12-26 18:15:54 INFO 1600 MHz 2013-12-26 18:15:54 INFO 1400 MHz 2013-12-26 18:15:54 INFO 1200 MHz 2013-12-26 18:15:54 INFO 1000 MHz 2013-12-26 18:15:54 INFO 800 MHz 2013-12-26 18:15:54 INFO Supported Governors: 2013-12-26 18:15:54 INFO conservative 2013-12-26 18:15:54 INFO ondemand 2013-12-26 18:15:54 INFO userspace 2013-12-26 18:15:54 INFO powersave 2013-12-26 18:15:54 INFO performance 2013-12-26 18:15:54 INFO Current governors: 2013-12-26 18:15:54 INFO cpu0: conservative 2013-12-26 18:15:54 INFO cpu1: conservative 2013-12-26 18:15:54 INFO cpu2: conservative 2013-12-26 18:15:54 INFO cpu3: conservative 2013-12-26 18:15:54 INFO Beginning Frequency Governors Testing 2013-12-26 18:15:54 INFO Userspace Governor Test: 2013-12-26 18:15:54 INFO - 2013-12-26 18:15:54 INFO Setting governor to userspace 2013-12-26 18:16:25 INFO Setting CPU frequency to 800 MHz 2013-12-26 18:16:25 INFO Running CPU load test... 2013-12-26 18:16:25 INFO pid 4613's current affinity list: 0-3 2013-12-26 18:16:25 INFO pid 4613's new affinity list: 0 2013-12-26 18:16:25 INFO Minimum frequency load test time: 0.23 2013-12-26 18:16:25 INFO Setting CPU frequency to 2801 MHz 2013-12-26 18:16:25 INFO Running CPU load test... 2013-12-26 18:16:25 INFO pid 4613's current affinity list: 0 2013-12-26 18:16:25 INFO pid 4613's new affinity list: 0 2013-12-26 18:16:25 INFO Maximum frequency load test time: 0.05 2013-12-26 18:16:25 INFO Found ida flag, increasing expected speedup by 8.0% 2013-12-26 18:16:25 INFO CPU Frequency Speed Up: 3.81 2013-12-26 18:16:25 INFO Measured Speed Up: 4.60 2013-12-26 18:16:25 INFO Percentage Difference 20.9% 2013-12-26 18:16:25 ERRORMeasured speedup vs expected speedup is 20.9% and is not within 10.0% margin. 2013-12-26 18:16:25 INFO On Demand Governor Test: 2013-12-26 18:16:25 INFO - 2013-12-26 18:16:25 INFO Setting governor to ondemand 2013-12-26 18:16:25 INFO Waiting 5 seconds... 2013-12-26 18:16:30 INFO Done. 2013-12-26 18:16:30 INFO Running CPU load test... 2013-12-26 18:16:30 INFO pid 4613's current affinity list: 0 2013-12-26 18:16:30 INFO pid 4613's new affinity list: 0 2013-12-26 18:16:31 INFO On Demand load test time: 0.24 2013-12-26 18:16:31 INFO Percentage Difference vs. maximum frequency: 380.0% 2013-12-26 18:16:31 ERROROn demand performance vs maximum of 380.0% is not within 10.0% margin 2013-12-26 18:16:31 INFO Waiting 5 seconds... 2013-12-26 18:16:36 INFO Done. 2013-12-26 18:16:36 INFO Performance Governor Test: 2013-12-26 18:16:36 INFO - 2013-12-26 18:16:36 INFO Setting governor to performance 2013-12-26 18:16:36 INFO Running CPU load test... 2013-12-26 18:16:36 INFO pid 4613's current affinity list: 0 2013-12-26 18:16:36 INFO pid 4613's new affinity list: 0 2013-12-26 18:16:36 INFO Performance load test time: 0.05 2013-12-26 18:16:36 INFO Percentage Difference vs. maximum frequency: 0.0% 2013-12-26 18:16:36 INFO Conservative Governor Test: 2013-12-26 18:16:36 INFO - 2013-12-26 18:16:36 INFO Setting governor to conservative 2013-12-26 18:16:36 INFO Waiting 10 seconds... 2013-12-26 18:16:46 INFO Done. 2013-12-26 18:16:46 INFO Running CPU load test... 2013-12-26 18:16:46 INFO pid 4613's current affinity list: 0 2013-12-26 18:16:46 INFO pid 4613's new affinity list: 0 2013-12-26 18:16:47 ERRORCould not repeat load test times within 5.0% 2013-12-26 18:16:47 ERRORNo Conservative load test time available. 2013-12-26 18:16:47 ERRORNot enough timing data to calculate speed differences. 2013-12-26 18:16:47 INFO Restoring original governor to conservative -- 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/1264346 Title: machine very slow with ondemand
[Kernel-packages] [Bug 1264346] Re: machine very slow with ondemand governor
This bug is similar to bug #326149 but I preferred to report a new one because this other bug: - is closed - concerns a very old kernel - concerns a very different processor -- 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/1264346 Title: machine very slow with ondemand governor Status in “linux” package in Ubuntu: New Bug description: On my laptop with this CPU: model name : Intel(R) Core(TM) i7-2640M CPU @ 2.80GHz I am using the ondemand governor: $ cat /sys/devices/system/cpu/c*/cpufreq/scaling_governor ondemand ondemand ondemand ondemand and the system is very slow to answer some inputs: - the text output pauses for several seconds while I am typing this text - trying to scroll a firefox window takes several seconds - switching tabs in firefox takes several seconds - ... Setting the governor to performance fixes this problem. Note that this bug does not reveal itself immediately after boot. It takes a suspend/resume to show up. ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: linux-image-3.11.0-15-generic 3.11.0-15.23 ProcVersionSignature: Ubuntu 3.11.0-15.23-generic 3.11.10 Uname: Linux 3.11.0-15-generic x86_64 NonfreeKernelModules: wl ApportVersion: 2.12.5-0ubuntu2.2 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: bonnaudl 2373 F pulseaudio Date: Thu Dec 26 18:17:23 2013 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=cf81afe7-8427-45fa-9149-c11d060a5a26 InstallationDate: Installed on 2013-04-27 (243 days ago) InstallationMedia: Ubuntu 13.04 Raring Ringtail - Release amd64 (20130424) MachineType: Dell Inc. Latitude E6520 MarkForUpload: True ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-15-generic root=UUID=749a9901-bdd3-4b5f-b80e-69414667e058 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.11.0-15-generic N/A linux-backports-modules-3.11.0-15-generic N/A linux-firmware 1.116 SourcePackage: linux UpgradeStatus: Upgraded to saucy on 2013-10-01 (86 days ago) dmi.bios.date: 02/28/2012 dmi.bios.vendor: Dell Inc. dmi.bios.version: A12 dmi.board.name: 0NVF5K dmi.board.vendor: Dell Inc. dmi.board.version: A01 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA12:bd02/28/2012:svnDellInc.:pnLatitudeE6520:pvr01:rvnDellInc.:rn0NVF5K:rvrA01:cvnDellInc.:ct9:cvr: dmi.product.name: Latitude E6520 dmi.product.version: 01 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1264346/+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
