From: Amit Shah <amit.shah-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
To: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Cc: Mike Lampard <mike-pBbpZId3k0Zx3z9c7Zyw2w@public.gmane.org>,
Avi Kivity <avik-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
Subject: Re: KVM: SVM: Disable Lazy FPU optimization because of regressions
Date: Mon, 19 Nov 2007 00:17:13 +0530 [thread overview]
Message-ID: <200711190017.13621.amit.shah@qumranet.com> (raw)
In-Reply-To: <200711190449.39313.mike-pBbpZId3k0Zx3z9c7Zyw2w@public.gmane.org>
On Sunday 18 November 2007 23:49:38 Mike Lampard wrote:
> This patch didnt resolve the font issues for me, however the other patch
> (unload FPU state) did fix it. I didnt run the test app (no compiler on
> the (32bit ubuntu) guest atm) but reverting this patch on my tree didnt
> appear to adversely affect anything. Are both patches necessary?
OK, thanks for confirming, even though a different patch fixed it :-)
Yes, both patches will be necessary as they fix two different things, but both
cause FPU leaks.
With this patch, though, the guest will run slower as we disable an
optimization (because it causes a regression).
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prev parent reply other threads:[~2007-11-18 18:47 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-18 17:14 KVM: SVM: Disable Lazy FPU optimization because of regressions Amit Shah
[not found] ` <200711182244.51689.amit.shah-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-11-18 17:28 ` Avi Kivity
[not found] ` <47407658.1010803-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-11-18 17:32 ` Amit Shah
2007-11-18 18:19 ` Mike Lampard
[not found] ` <200711190449.39313.mike-pBbpZId3k0Zx3z9c7Zyw2w@public.gmane.org>
2007-11-18 18:47 ` Amit Shah [this message]
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