[Qemu-devel] [Bug 1775702] [NEW] High host CPU load and slower guest after upgrade guest OS Windows 10 to ver 1803

[Qemu-devel] [Bug 1775702] [NEW] High host CPU load and slower guest after upgrade guest OS Windows 10 to ver 1803

[Giovanni Panozzo]

Public bug reported:

After upgrading Windows 10 guest to version 1803, guests VM runs slower
and there is high host CPU load even when guest is almost idle. Did not
happened with windows 10 up to version 1709.

See my 1st report here:
https://askubuntu.com/questions/1033985/kvm-high-host-cpu-load-after-upgrading-vm-to-windows-10-1803

Another user report is here:
https://lime-technology.com/forums/topic/71479-windows-10-vm-cpu-usage/

Tested on: Ubuntu 16.04 with qemu 2.5.0 and i3-3217U, Arch with qemu
2.12 i5-7200U, Ubuntu 18.04 qemu 2.11.1 AMD FX-4300. All three platform
showing the same slowdown and higher host cpu load with windows 10 1803
VM compared to windows 10 1709 VM.

** Affects: qemu
     Importance: Undecided
         Status: New

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Title:
  High host CPU load and slower guest after upgrade guest OS Windows 10
  to ver 1803

Status in QEMU:
  New

Bug description:
  After upgrading Windows 10 guest to version 1803, guests VM runs
  slower and there is high host CPU load even when guest is almost idle.
  Did not happened with windows 10 up to version 1709.

  See my 1st report here:
  https://askubuntu.com/questions/1033985/kvm-high-host-cpu-load-after-upgrading-vm-to-windows-10-1803

  Another user report is here:
  https://lime-technology.com/forums/topic/71479-windows-10-vm-cpu-usage/

  Tested on: Ubuntu 16.04 with qemu 2.5.0 and i3-3217U, Arch with qemu
  2.12 i5-7200U, Ubuntu 18.04 qemu 2.11.1 AMD FX-4300. All three
  platform showing the same slowdown and higher host cpu load with
  windows 10 1803 VM compared to windows 10 1709 VM.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1775702/+subscriptions

[Qemu-devel] [Bug 1775702] Re: High host CPU load and slower guest after upgrade guest OS Windows 10 to ver 1803

[Lemos Lemosov]

This bug affect me

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https://bugs.launchpad.net/bugs/1775702

Title:
  High host CPU load and slower guest after upgrade guest OS Windows 10
  to ver 1803

Status in QEMU:
  New

Bug description:
  After upgrading Windows 10 guest to version 1803, guests VM runs
  slower and there is high host CPU load even when guest is almost idle.
  Did not happened with windows 10 up to version 1709.

  See my 1st report here:
  https://askubuntu.com/questions/1033985/kvm-high-host-cpu-load-after-upgrading-vm-to-windows-10-1803

  Another user report is here:
  https://lime-technology.com/forums/topic/71479-windows-10-vm-cpu-usage/

  Tested on: Ubuntu 16.04 with qemu 2.5.0 and i3-3217U, Arch with qemu
  2.12 i5-7200U, Ubuntu 18.04 qemu 2.11.1 AMD FX-4300. All three
  platform showing the same slowdown and higher host cpu load with
  windows 10 1803 VM compared to windows 10 1709 VM.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1775702/+subscriptions

[Qemu-devel] [Bug 1775702] Re: High host CPU load and slower guest after upgrade guest OS Windows 10 to ver 1803

[Heiko Sieger]

I ran into similar issues with Windows 10 (1803), with regard to 2D
graphics performance.

See my bug report here:
https://bugzilla.kernel.org/show_bug.cgi?id=200877

Could you test with Spectre protection (temporarily) turned off inside
the Windows VM?

See my post here: https://heiko-sieger.info/low-2d-graphics-benchmark-
with-windows-10-1803-kvm-vm/


** Bug watch added: Linux Kernel Bug Tracker #200877
   https://bugzilla.kernel.org/show_bug.cgi?id=200877

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https://bugs.launchpad.net/bugs/1775702

Title:
  High host CPU load and slower guest after upgrade guest OS Windows 10
  to ver 1803

Status in QEMU:
  New

Bug description:
  After upgrading Windows 10 guest to version 1803, guests VM runs
  slower and there is high host CPU load even when guest is almost idle.
  Did not happened with windows 10 up to version 1709.

  See my 1st report here:
  https://askubuntu.com/questions/1033985/kvm-high-host-cpu-load-after-upgrading-vm-to-windows-10-1803

  Another user report is here:
  https://lime-technology.com/forums/topic/71479-windows-10-vm-cpu-usage/

  Tested on: Ubuntu 16.04 with qemu 2.5.0 and i3-3217U, Arch with qemu
  2.12 i5-7200U, Ubuntu 18.04 qemu 2.11.1 AMD FX-4300. All three
  platform showing the same slowdown and higher host cpu load with
  windows 10 1803 VM compared to windows 10 1709 VM.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1775702/+subscriptions

Re: [Qemu-devel] [Bug 1775702] Re: High host CPU load and slower guest after upgrade guest OS Windows 10 to ver 1803

[Alexandre DERUMIER]

Hi,
proxmox users have reported this bug
https://forum.proxmox.com/threads/high-cpu-load-for-windows-10-guests-when-idle.44531/#post-213876

hv_synic && hv_stimer  hyperv enlightments fix it


(seem to be related to some hpet change in windows)



----- Mail original -----
De: "Lemos Lemosov" <1775702@bugs.launchpad.net>
À: "qemu-devel" <qemu-devel@nongnu.org>
Envoyé: Mercredi 1 Août 2018 08:43:46
Objet: [Qemu-devel] [Bug 1775702] Re: High host CPU load and slower guest after upgrade guest OS Windows 10 to ver 1803

This bug affect me 

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You received this bug notification because you are a member of qemu- 
devel-ml, which is subscribed to QEMU. 
https://bugs.launchpad.net/bugs/1775702 

Title: 
High host CPU load and slower guest after upgrade guest OS Windows 10 
to ver 1803 

Status in QEMU: 
New 

Bug description: 
After upgrading Windows 10 guest to version 1803, guests VM runs 
slower and there is high host CPU load even when guest is almost idle. 
Did not happened with windows 10 up to version 1709. 

See my 1st report here: 
https://askubuntu.com/questions/1033985/kvm-high-host-cpu-load-after-upgrading-vm-to-windows-10-1803 

Another user report is here: 
https://lime-technology.com/forums/topic/71479-windows-10-vm-cpu-usage/ 

Tested on: Ubuntu 16.04 with qemu 2.5.0 and i3-3217U, Arch with qemu 
2.12 i5-7200U, Ubuntu 18.04 qemu 2.11.1 AMD FX-4300. All three 
platform showing the same slowdown and higher host cpu load with 
windows 10 1803 VM compared to windows 10 1709 VM. 

To manage notifications about this bug go to: 
https://bugs.launchpad.net/qemu/+bug/1775702/+subscriptions 

[Qemu-devel] [Bug 1775702] Re: High host CPU load and slower guest after upgrade guest OS Windows 10 to ver 1803

[costinel]

hv_synic && hv_stimer only reduces the cpu from 40-50% to 4-5%.
still expecting under 1% like linux guests.

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https://bugs.launchpad.net/bugs/1775702

Title:
  High host CPU load and slower guest after upgrade guest OS Windows 10
  to ver 1803

Status in QEMU:
  New

Bug description:
  After upgrading Windows 10 guest to version 1803, guests VM runs
  slower and there is high host CPU load even when guest is almost idle.
  Did not happened with windows 10 up to version 1709.

  See my 1st report here:
  https://askubuntu.com/questions/1033985/kvm-high-host-cpu-load-after-upgrading-vm-to-windows-10-1803

  Another user report is here:
  https://lime-technology.com/forums/topic/71479-windows-10-vm-cpu-usage/

  Tested on: Ubuntu 16.04 with qemu 2.5.0 and i3-3217U, Arch with qemu
  2.12 i5-7200U, Ubuntu 18.04 qemu 2.11.1 AMD FX-4300. All three
  platform showing the same slowdown and higher host cpu load with
  windows 10 1803 VM compared to windows 10 1709 VM.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1775702/+subscriptions

[Qemu-devel] [Bug 1775702] Re: High host CPU load and slower guest after upgrade guest OS Windows 10 to ver 1803

[Alex Bennée]

** Tags added: windows10

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You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1775702

Title:
  High host CPU load and slower guest after upgrade guest OS Windows 10
  to ver 1803

Status in QEMU:
  New

Bug description:
  After upgrading Windows 10 guest to version 1803, guests VM runs
  slower and there is high host CPU load even when guest is almost idle.
  Did not happened with windows 10 up to version 1709.

  See my 1st report here:
  https://askubuntu.com/questions/1033985/kvm-high-host-cpu-load-after-upgrading-vm-to-windows-10-1803

  Another user report is here:
  https://lime-technology.com/forums/topic/71479-windows-10-vm-cpu-usage/

  Tested on: Ubuntu 16.04 with qemu 2.5.0 and i3-3217U, Arch with qemu
  2.12 i5-7200U, Ubuntu 18.04 qemu 2.11.1 AMD FX-4300. All three
  platform showing the same slowdown and higher host cpu load with
  windows 10 1803 VM compared to windows 10 1709 VM.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1775702/+subscriptions

[Bug 1775702] Re: High host CPU load and slower guest after upgrade guest OS Windows 10 to ver 1803

[Gannet]

I found that C:\Program Files (x86)\SPICE Guest
Tools\drivers\Balloon\w10\amd64/blnsvr.exe intensively requesting
something in WMI-provider-host. And there are a lot of errors in event
logs about it also.

-- 
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1775702

Title:
  High host CPU load and slower guest after upgrade guest OS Windows 10
  to ver 1803

Status in QEMU:
  New

Bug description:
  After upgrading Windows 10 guest to version 1803, guests VM runs
  slower and there is high host CPU load even when guest is almost idle.
  Did not happened with windows 10 up to version 1709.

  See my 1st report here:
  https://askubuntu.com/questions/1033985/kvm-high-host-cpu-load-after-upgrading-vm-to-windows-10-1803

  Another user report is here:
  https://lime-technology.com/forums/topic/71479-windows-10-vm-cpu-usage/

  Tested on: Ubuntu 16.04 with qemu 2.5.0 and i3-3217U, Arch with qemu
  2.12 i5-7200U, Ubuntu 18.04 qemu 2.11.1 AMD FX-4300. All three
  platform showing the same slowdown and higher host cpu load with
  windows 10 1803 VM compared to windows 10 1709 VM.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1775702/+subscriptions

[Bug 1775702] Re: High host CPU load and slower guest after upgrade guest OS Windows 10 to ver 1803

[Thomas Huth]

Gannet, SPICE Guest Tools is certainly a different problem, you should
report that to the spice project instead. And since the original problem
was apparently fixed via hv_synic / hv_stimer (if I got the comments
right), I'm closing this ticket now.

** Changed in: qemu
       Status: New => Fix Released

-- 
You received this bug notification because you are a member of qemu-
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https://bugs.launchpad.net/bugs/1775702

Title:
  High host CPU load and slower guest after upgrade guest OS Windows 10
  to ver 1803

Status in QEMU:
  Fix Released

Bug description:
  After upgrading Windows 10 guest to version 1803, guests VM runs
  slower and there is high host CPU load even when guest is almost idle.
  Did not happened with windows 10 up to version 1709.

  See my 1st report here:
  https://askubuntu.com/questions/1033985/kvm-high-host-cpu-load-after-upgrading-vm-to-windows-10-1803

  Another user report is here:
  https://lime-technology.com/forums/topic/71479-windows-10-vm-cpu-usage/

  Tested on: Ubuntu 16.04 with qemu 2.5.0 and i3-3217U, Arch with qemu
  2.12 i5-7200U, Ubuntu 18.04 qemu 2.11.1 AMD FX-4300. All three
  platform showing the same slowdown and higher host cpu load with
  windows 10 1803 VM compared to windows 10 1709 VM.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1775702/+subscriptions