From: Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
To: Darren Blaber <dmbtech-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Subject: Re: Bad Performance
Date: Wed, 28 Nov 2007 18:15:49 +0200 [thread overview]
Message-ID: <474D9435.3040608@qumranet.com> (raw)
In-Reply-To: <474D8F83.3010303-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Darren Blaber wrote:
> Hello, I was wondering if any of you were able to to help me figure out
> why I am getting poor performance with kvm. When running windows as a
> guest os, when windows is idle, using 1-2% cpu, the kvm process uses
> about 20-30% cpu. Whenever I am doing any kind of activity (especially
> disk activity) its shoots right up to 99%. Anyway, have a readprofile
> snap shot as well as kvm stat output.
>
> 7383 hpet_rtc_timer_init 35.4952
> 2360 sys_timer_gettime 18.4375
>
This is suspiciously high. Anything about hpet in dmesg? Can you try a
.config without hpet?
--
Any sufficiently difficult bug is indistinguishable from a feature.
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next prev parent reply other threads:[~2007-11-28 16:15 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-28 15:55 Bad Performance Darren Blaber
[not found] ` <474D8F83.3010303-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2007-11-28 16:15 ` Izik Eidus
[not found] ` <1196266531.6456.1.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2007-11-28 16:15 ` Darren Blaber
2007-11-28 16:15 ` Avi Kivity [this message]
[not found] ` <474D9435.3040608-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-11-28 20:06 ` Darren Blaber
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