Messages in this thread | | | Subject | Re: [PATCH v4 0/3] KVM: Dynamic Halt-Polling | From | Wanpeng Li <> | Date | Sun, 30 Aug 2015 08:21:06 +0800 |
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On 8/30/15 8:13 AM, Peter Kieser wrote: > On 2015-08-29 4:55 PM, Wanpeng Li wrote: >> On 8/30/15 6:26 AM, Peter Kieser wrote: >>> Thanks, Wanpeng. Applied this to Linux 3.18 and seeing much higher >>> CPU usage (200%) for qemu 2.4.0 process on a Windows 10 x64 guest. >>> qemu parameters: >> >> Thanks for the report. If Paolo's patch "kvm: add halt_poll_ns module >> parameter" is applied on your 3.18? Btw, do you test the linux guest? > > No high CPU usage on Linux guests.
What's the difference w/ and w/o the patchset?
> Following patch series are applied (in order): > > * kvm: add halt_poll_ns module parameter > * KVM: make halt_poll_ns static > * KVM: Dynamic Halt-Polling v4 >
I will find a windows 10 x64 guest to figure out what happens tomorrow. Do you test other windows guest(like win7)? Btw, could you test v3 dynamic halt-polling(against windows 10 guest) which David gives the shrink/grow logic different with v4. Many thanks for your time, Peter! ;-)
Regards, Wanepng Li
> -Peter > >
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