From: Avi Kivity <avi@redhat.com>
To: "BRAUN, Stefanie" <Stefanie.Braun@alcatel-lucent.de>
Cc: kvm@vger.kernel.org
Subject: Re: AW: AW: AW: AW: AW: KVM performance
Date: Thu, 16 Apr 2009 17:40:59 +0300 [thread overview]
Message-ID: <49E7437B.8040705@redhat.com> (raw)
In-Reply-To: <133D9897FB9C5E4E9DF2779DC91E947C518365@SLFSNX.rcs.alcatel-research.de>
BRAUN, Stefanie wrote:
> Hello,
> I've compiled a new kernel v2.6.27-rc5 with the modified svm.c.
> But the behaviour of the vlc process in the guest is still the same.
>
> I've exported additional cpu features to the guest, e.g. mmxext with kvm-84.
> But no performance changes.
>
> I was not able to export the cpu flags 3dnow and 3dnowext to the guest, no error but they are not visible in /proc/cpuinfo. Not sure why.
>
>
Can you test on an intel host (relative performance host vs guest)?
--
Do not meddle in the internals of kernels, for they are subtle and quick to panic.
next prev parent reply other threads:[~2009-04-16 14:41 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-03 11:32 KVM performance BRAUN, Stefanie
2009-04-06 11:45 ` Avi Kivity
[not found] ` <133D9897FB9C5E4E9DF2779DC91E947C51834A@SLFSNX.rcs.alcatel-research.de>
[not found] ` <49DA2F54.8090109@redhat.com>
2009-04-07 17:00 ` AW: AW: " BRAUN, Stefanie
2009-04-07 17:34 ` Avi Kivity
2009-04-08 11:38 ` AW: " BRAUN, Stefanie
2009-04-09 15:34 ` BRAUN, Stefanie
2009-04-11 16:19 ` Avi Kivity
2009-04-14 8:26 ` AW: " BRAUN, Stefanie
2009-04-14 8:47 ` Avi Kivity
2009-04-16 13:27 ` AW: " BRAUN, Stefanie
2009-04-16 14:40 ` Avi Kivity [this message]
2009-04-06 12:13 ` Hauke Hoffmann
2009-04-06 16:30 ` AW: " BRAUN, Stefanie
2009-04-07 12:58 ` BRAUN, Stefanie
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