[Kernel-packages] [Bug 1042612] Re: [Lenovo ThinkPad W520] KVM Guests only use one CPU after host wakes up from sleep
Michael Cook, regarding the BIOS update, many have found success
consulting https://help.ubuntu.com/community/BiosUpdate .
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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1042612
Title:
[Lenovo ThinkPad W520] KVM Guests only use one CPU after host wakes up
from sleep
Status in “linux” package in Ubuntu:
Incomplete
Bug description:
ThinkPad W520 running U12.04 with the latest updates applied.
VT-d enabled in BIOS
NVIDIA driver disabled (because it simply doesn't boot with VT-d enabled)
KVM Guests of Windows7, RHEL5.3
i) Start KVM Guest and you can see all host CPUs timeslicing and guest is
fast and responsive.
ii) Shutdown KVM Guest.
iii) Place Host laptop into sleep mode.
iv) Wake up host and restart KVM Guest
v) KVM Guest CPU graph is at 50%, never fluctuates and behaviour is like
single-core. All host CPUs are idling except for one at 100%.
This is quite reproducable. It is identical in performance and KVM Guest
behaviour if you disabled VT-d in the BIOS (but have VT enabled).
---
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
AplayDevices:
List of PLAYBACK Hardware Devices
card 0: PCH [HDA Intel PCH], device 0: CONEXANT Analog [CONEXANT Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
ApportVersion: 2.0.1-0ubuntu12
Architecture: amd64
ArecordDevices:
List of CAPTURE Hardware Devices
card 0: PCH [HDA Intel PCH], device 0: CONEXANT Analog [CONEXANT Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USERPID ACCESS COMMAND
/dev/snd/controlC0: kvm2293 F pulseaudio
Card0.Amixer.info:
Card hw:0 'PCH'/'HDA Intel PCH at 0xf3b2 irq 54'
Mixer name : 'Conexant CX20590'
Components : 'HDA:14f1506e,17aa21cf,0010
HDA:14f12c06,17aa2122,0010'
Controls : 20
Simple ctrls : 10
Card29.Amixer.info:
Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw
unknown'
Mixer name : 'ThinkPad EC (unknown)'
Components : ''
Controls : 1
Simple ctrls : 1
Card29.Amixer.values:
Simple mixer control 'Console',0
Capabilities: pswitch pswitch-joined penum
Playback channels: Mono
Mono: Playback [on]
DistroRelease: Ubuntu 12.04
HibernationDevice: RESUME=UUID=ef35a2f8-8839-44d5-ac77-fcc3fd10dfa2
InstallationMedia: Ubuntu 12.04 LTS Precise Pangolin - Release amd64
(20120425)
MachineType: LENOVO 427638U
Package: linux (not installed)
ProcEnviron:
LANGUAGE=en_CA:en
TERM=xterm
PATH=(custom, no user)
LANG=en_CA.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-29-generic
root=UUID=6ddbc439-93f6-4c59-a307-902d009a430d ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.2.0-29.46-generic 3.2.24
RelatedPackageVersions:
linux-restricted-modules-3.2.0-29-generic N/A
linux-backports-modules-3.2.0-29-generic N/A
linux-firmware1.79
StagingDrivers: mei
Tags: precise running-unity staging
Uname: Linux 3.2.0-29-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip libvirtd lpadmin plugdev sambashare sudo
dmi.bios.date: 03/02/2011
dmi.bios.vendor: LENOVO
dmi.bios.version: 8BET30WW (1.06 )
dmi.board.asset.tag: Not Available
dmi.board.name: 427638U
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias:
dmi:bvnLENOVO:bvr8BET30WW(1.06):bd03/02/2011:svnLENOVO:pn427638U:pvrThinkPadW520:rvnLENOVO:rn427638U:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 427638U
dmi.product.version: ThinkPad W520
dmi.sys.vendor: LENOVO
To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1042612] Re: [Lenovo ThinkPad W520] KVM Guests only use one CPU after host wakes up from sleep
Retesting:
I tested suspending the host but this time with the latest updates to U12.04
applied to the host guest.
HOST: Linux thinkpad-w520 3.2.0-55-generic #85-Ubuntu SMP Wed Oct 2 12:29:27
UTC 2013 x86_64 x86_64 x86_64
GUEST: Linux tpa 3.2.0-41-generic #66-Ubuntu SMP Thu Apr 25 03:27:11 UTC 2013
x86_64 x86_64 x86_64
1) I stressed out the guest to see which CPUs were in use. I used stress
--cpu 2
2) I noticed the VM Manager's CPU for this guest go solidly to 100% and CPU 5
6 to roughly constant 98%.
3) On resuming the host, I noticed stress continued to run but the VM Manager
CPU graph had spikes every ~2-3 seconds.
4) Host Sys-monitor showed CPUs for this guest was roughly constant at 94%.
But there was two instead of just one being used by the guest... which
is different from my original issue where they all head to just one host
CPU. I repeated this suspension several times and the CPU guest spiking
did not occur again. So it looks like an improvement.
BIOS Update:
Next, as requested above, I tried to update my W520 BIOS from 1.06 (2011) to
1.42 (latest from Lenovo 2013).
I download the ISO from Lenovo and this booted to Starting PC DOS at which
point it seems to have hung.
So, I quickly looked into trying to extract and apply the BIOS image in Ubuntu.
This does not seem very straightforward either. I've found one guide on
ThinkWiki which has step-by-step process (with plenty of warnings) for the old
style BIOS image .exe to build a new ISO to boot. I extracted the 'new' style
using innoextract but I have not found/or understood what do with these files
from the ThinkWiki page.
Any help here on updating W520 with the newer 1.42 bios ISO/.exe?
--
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/1042612
Title:
[Lenovo ThinkPad W520] KVM Guests only use one CPU after host wakes up
from sleep
Status in “linux” package in Ubuntu:
Incomplete
Bug description:
ThinkPad W520 running U12.04 with the latest updates applied.
VT-d enabled in BIOS
NVIDIA driver disabled (because it simply doesn't boot with VT-d enabled)
KVM Guests of Windows7, RHEL5.3
i) Start KVM Guest and you can see all host CPUs timeslicing and guest is
fast and responsive.
ii) Shutdown KVM Guest.
iii) Place Host laptop into sleep mode.
iv) Wake up host and restart KVM Guest
v) KVM Guest CPU graph is at 50%, never fluctuates and behaviour is like
single-core. All host CPUs are idling except for one at 100%.
This is quite reproducable. It is identical in performance and KVM Guest
behaviour if you disabled VT-d in the BIOS (but have VT enabled).
---
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
AplayDevices:
List of PLAYBACK Hardware Devices
card 0: PCH [HDA Intel PCH], device 0: CONEXANT Analog [CONEXANT Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
ApportVersion: 2.0.1-0ubuntu12
Architecture: amd64
ArecordDevices:
List of CAPTURE Hardware Devices
card 0: PCH [HDA Intel PCH], device 0: CONEXANT Analog [CONEXANT Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USERPID ACCESS COMMAND
/dev/snd/controlC0: kvm2293 F pulseaudio
Card0.Amixer.info:
Card hw:0 'PCH'/'HDA Intel PCH at 0xf3b2 irq 54'
Mixer name : 'Conexant CX20590'
Components : 'HDA:14f1506e,17aa21cf,0010
HDA:14f12c06,17aa2122,0010'
Controls : 20
Simple ctrls : 10
Card29.Amixer.info:
Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw
unknown'
Mixer name : 'ThinkPad EC (unknown)'
Components : ''
Controls : 1
Simple ctrls : 1
Card29.Amixer.values:
Simple mixer control 'Console',0
Capabilities: pswitch pswitch-joined penum
Playback channels: Mono
Mono: Playback [on]
DistroRelease: Ubuntu 12.04
HibernationDevice: RESUME=UUID=ef35a2f8-8839-44d5-ac77-fcc3fd10dfa2
InstallationMedia: Ubuntu 12.04 LTS Precise Pangolin - Release amd64
(20120425)
MachineType: LENOVO 427638U
Package: linux (not installed)
ProcEnviron:
LANGUAGE=en_CA:en
TERM=xterm
PATH=(custom, no user)
LANG=en_CA.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-29-generic
root=UUID=6ddbc439-93f6-4c59-a307-902d009a430d ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.2.0-29.46-generic 3.2.24
RelatedPackageVersions:
linux-restricted-modules-3.2.0-29-generic N/A
linux-backports-modules-3.2.0-29-generic N/A
linux-firmware1.79
StagingDrivers: mei
Tags: precise running-unity staging
Uname: Linux 3.2.0-29-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip libvirtd lpadmin plugdev sambashare sudo
dmi.bios.date: 03/02/2011
[Kernel-packages] [Bug 1042612] Re: [Lenovo ThinkPad W520] KVM Guests only use one CPU after host wakes up from sleep
Further to my last comment, some real-world network testing of the applications
running on the guests has shown that although the guests resume to use all CPUs
the overall performance is sub-standard compared to a clean startup of the host
(no suspend).
I don't have any firm numbers to share, just hands-on experience with video
streams becoming very unstable after a resume, even with a VM guest reboot. A
fresh reboot of the host fixed this substandard behaviour.
--
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/1042612
Title:
[Lenovo ThinkPad W520] KVM Guests only use one CPU after host wakes up
from sleep
Status in “linux” package in Ubuntu:
Incomplete
Bug description:
ThinkPad W520 running U12.04 with the latest updates applied.
VT-d enabled in BIOS
NVIDIA driver disabled (because it simply doesn't boot with VT-d enabled)
KVM Guests of Windows7, RHEL5.3
i) Start KVM Guest and you can see all host CPUs timeslicing and guest is
fast and responsive.
ii) Shutdown KVM Guest.
iii) Place Host laptop into sleep mode.
iv) Wake up host and restart KVM Guest
v) KVM Guest CPU graph is at 50%, never fluctuates and behaviour is like
single-core. All host CPUs are idling except for one at 100%.
This is quite reproducable. It is identical in performance and KVM Guest
behaviour if you disabled VT-d in the BIOS (but have VT enabled).
---
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
AplayDevices:
List of PLAYBACK Hardware Devices
card 0: PCH [HDA Intel PCH], device 0: CONEXANT Analog [CONEXANT Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
ApportVersion: 2.0.1-0ubuntu12
Architecture: amd64
ArecordDevices:
List of CAPTURE Hardware Devices
card 0: PCH [HDA Intel PCH], device 0: CONEXANT Analog [CONEXANT Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USERPID ACCESS COMMAND
/dev/snd/controlC0: kvm2293 F pulseaudio
Card0.Amixer.info:
Card hw:0 'PCH'/'HDA Intel PCH at 0xf3b2 irq 54'
Mixer name : 'Conexant CX20590'
Components : 'HDA:14f1506e,17aa21cf,0010
HDA:14f12c06,17aa2122,0010'
Controls : 20
Simple ctrls : 10
Card29.Amixer.info:
Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw
unknown'
Mixer name : 'ThinkPad EC (unknown)'
Components : ''
Controls : 1
Simple ctrls : 1
Card29.Amixer.values:
Simple mixer control 'Console',0
Capabilities: pswitch pswitch-joined penum
Playback channels: Mono
Mono: Playback [on]
DistroRelease: Ubuntu 12.04
HibernationDevice: RESUME=UUID=ef35a2f8-8839-44d5-ac77-fcc3fd10dfa2
InstallationMedia: Ubuntu 12.04 LTS Precise Pangolin - Release amd64
(20120425)
MachineType: LENOVO 427638U
Package: linux (not installed)
ProcEnviron:
LANGUAGE=en_CA:en
TERM=xterm
PATH=(custom, no user)
LANG=en_CA.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-29-generic
root=UUID=6ddbc439-93f6-4c59-a307-902d009a430d ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.2.0-29.46-generic 3.2.24
RelatedPackageVersions:
linux-restricted-modules-3.2.0-29-generic N/A
linux-backports-modules-3.2.0-29-generic N/A
linux-firmware1.79
StagingDrivers: mei
Tags: precise running-unity staging
Uname: Linux 3.2.0-29-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip libvirtd lpadmin plugdev sambashare sudo
dmi.bios.date: 03/02/2011
dmi.bios.vendor: LENOVO
dmi.bios.version: 8BET30WW (1.06 )
dmi.board.asset.tag: Not Available
dmi.board.name: 427638U
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias:
dmi:bvnLENOVO:bvr8BET30WW(1.06):bd03/02/2011:svnLENOVO:pn427638U:pvrThinkPadW520:rvnLENOVO:rn427638U:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 427638U
dmi.product.version: ThinkPad W520
dmi.sys.vendor: LENOVO
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1042612/+subscriptions
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Post to : kernel-packages@lists.launchpad.net
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[Kernel-packages] [Bug 1042612] Re: [Lenovo ThinkPad W520] KVM Guests only use one CPU after host wakes up from sleep
Thanks for the suggestion. I will be able to try this out by end of Nov
2013.
--
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/1042612
Title:
[Lenovo ThinkPad W520] KVM Guests only use one CPU after host wakes up
from sleep
Status in “linux” package in Ubuntu:
Incomplete
Bug description:
ThinkPad W520 running U12.04 with the latest updates applied.
VT-d enabled in BIOS
NVIDIA driver disabled (because it simply doesn't boot with VT-d enabled)
KVM Guests of Windows7, RHEL5.3
i) Start KVM Guest and you can see all host CPUs timeslicing and guest is
fast and responsive.
ii) Shutdown KVM Guest.
iii) Place Host laptop into sleep mode.
iv) Wake up host and restart KVM Guest
v) KVM Guest CPU graph is at 50%, never fluctuates and behaviour is like
single-core. All host CPUs are idling except for one at 100%.
This is quite reproducable. It is identical in performance and KVM Guest
behaviour if you disabled VT-d in the BIOS (but have VT enabled).
---
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
AplayDevices:
List of PLAYBACK Hardware Devices
card 0: PCH [HDA Intel PCH], device 0: CONEXANT Analog [CONEXANT Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
ApportVersion: 2.0.1-0ubuntu12
Architecture: amd64
ArecordDevices:
List of CAPTURE Hardware Devices
card 0: PCH [HDA Intel PCH], device 0: CONEXANT Analog [CONEXANT Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USERPID ACCESS COMMAND
/dev/snd/controlC0: kvm2293 F pulseaudio
Card0.Amixer.info:
Card hw:0 'PCH'/'HDA Intel PCH at 0xf3b2 irq 54'
Mixer name : 'Conexant CX20590'
Components : 'HDA:14f1506e,17aa21cf,0010
HDA:14f12c06,17aa2122,0010'
Controls : 20
Simple ctrls : 10
Card29.Amixer.info:
Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw
unknown'
Mixer name : 'ThinkPad EC (unknown)'
Components : ''
Controls : 1
Simple ctrls : 1
Card29.Amixer.values:
Simple mixer control 'Console',0
Capabilities: pswitch pswitch-joined penum
Playback channels: Mono
Mono: Playback [on]
DistroRelease: Ubuntu 12.04
HibernationDevice: RESUME=UUID=ef35a2f8-8839-44d5-ac77-fcc3fd10dfa2
InstallationMedia: Ubuntu 12.04 LTS Precise Pangolin - Release amd64
(20120425)
MachineType: LENOVO 427638U
Package: linux (not installed)
ProcEnviron:
LANGUAGE=en_CA:en
TERM=xterm
PATH=(custom, no user)
LANG=en_CA.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-29-generic
root=UUID=6ddbc439-93f6-4c59-a307-902d009a430d ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.2.0-29.46-generic 3.2.24
RelatedPackageVersions:
linux-restricted-modules-3.2.0-29-generic N/A
linux-backports-modules-3.2.0-29-generic N/A
linux-firmware1.79
StagingDrivers: mei
Tags: precise running-unity staging
Uname: Linux 3.2.0-29-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip libvirtd lpadmin plugdev sambashare sudo
dmi.bios.date: 03/02/2011
dmi.bios.vendor: LENOVO
dmi.bios.version: 8BET30WW (1.06 )
dmi.board.asset.tag: Not Available
dmi.board.name: 427638U
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias:
dmi:bvnLENOVO:bvr8BET30WW(1.06):bd03/02/2011:svnLENOVO:pn427638U:pvrThinkPadW520:rvnLENOVO:rn427638U:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 427638U
dmi.product.version: ThinkPad W520
dmi.sys.vendor: LENOVO
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1042612/+subscriptions
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Post to : kernel-packages@lists.launchpad.net
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