Re: [ANNOUNCE] kvm-49 release

Haydn Solomon
2007-11-02T02:14:35Z

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On Nov 1, 2007 9:54 PM, Haydn Solomon <haydn.solomon-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:

>
>
> On Nov 1, 2007 9:36 PM, Sheng Yang <sheng.yang-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org> wrote:
>
> > On Friday 02 November 2007 09:10:31 Haydn Solomon wrote:
> > > How can I tell that my cpu has flexpriority?
> > >
> > > (Resending this as didn't cc list last time.)
> >
> > Oops, forgot the patch...
>
>
> Thanks Sheng.
>
> Luckily for me I've got the Flexpriority feature
>
> [root@localhost winxptest]# dmesg | grep lex
> kvm: FlexPriority enabled!
>
> One thing I do notice apart from noticeably very good responsiveness and
> performance on windows guest ( xp sp2 ) is that this is the lowest cpu usage
> I've seen on the qemu kvm process to date. I haven't tried smp yet but that
> will be my next test and will report on how that goes. Thanks guys and well
> done!
>

One issue I do see. When I run my windows xp guest which is ACPI
Multiprocessor PC HAL with -smp 2, it runs much slower and cpu usage is
high.

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