Windows 2k8 R2 guest with updated virtio drivers is idle inside but on the host qemu-kvm process uses 7-15% cpu. Things that have been tried without any significant success - removed tablet device - manually set cpu topology for cores per socket Is it just me or the qemu-kvm has little tolerance with windows?
Banyan He
2013-Apr-07 15:18 UTC
[CentOS-virt] [CentOS] qemu-kvm high cpu usage with idle windows guest
Maybe you can print out what it is doing, then try to figure out if they are doing good. My linux works good, never tried windows. ------------ Banyan He Blog: http://www.rootong.com Email: banyan at rootong.com On 4/7/2013 10:21 PM, Micky wrote:> Windows 2k8 R2 guest with updated virtio drivers is idle inside but on > the host qemu-kvm process uses 7-15% cpu. > > Things that have been tried without any significant success > - removed tablet device > - manually set cpu topology for cores per socket > > Is it just me or the qemu-kvm has little tolerance with windows? > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos >
Zoltan Frombach
2013-Apr-07 15:32 UTC
[CentOS-virt] [CentOS] qemu-kvm high cpu usage with idle windows guest
Check out these threads they may help you solve your issue with Windows VMs: http://forum.proxmox.com/threads/5770-Windows-guest-high-context-switch-rate-when-idle http://serverfault.com/questions/146922/why-is-idle-windows-vm-using-so-much-cpu Zoltan On 4/7/2013 5:18 PM, Banyan He wrote:> Maybe you can print out what it is doing, then try to figure out if they > are doing good. My linux works good, never tried windows. > > ------------ > Banyan He > Blog: http://www.rootong.com > Email: banyan at rootong.com > > On 4/7/2013 10:21 PM, Micky wrote: >> Windows 2k8 R2 guest with updated virtio drivers is idle inside but on >> the host qemu-kvm process uses 7-15% cpu. >> >> Things that have been tried without any significant success >> - removed tablet device >> - manually set cpu topology for cores per socket >> >> Is it just me or the qemu-kvm has little tolerance with windows? >> _______________________________________________ >> CentOS mailing list >> CentOS at centos.org >> http://lists.centos.org/mailman/listinfo/centos >> > _______________________________________________ > CentOS-virt mailing list > CentOS-virt at centos.org > http://lists.centos.org/mailman/listinfo/centos-virt >