From: Avi Kivity <avi@qumranet.com>
To: Joerg Roedel <joerg.roedel@amd.com>
Cc: kvm-devel@lists.sourceforge.net
Subject: Re: [PATCH 0/5] SVM CR8 optimization patches
Date: Fri, 18 Apr 2008 19:07:35 +0300 [thread overview]
Message-ID: <4808C747.1000404@qumranet.com> (raw)
In-Reply-To: <1208357479-28574-1-git-send-email-joerg.roedel@amd.com>
Joerg Roedel wrote:
> This patch series implements optimizations to the CR8 intercept handling in
> SVM. With these patches applied CR8 reads are not intercepted anymore. The
> writes to CR8 are only intercepted if the TPR masks interrupts. This
> significantly reduces the number of total CR8 intercepts when running Windows
> 64 bit versions. Some quick numbers:
>
> Boot and shudown of Vista 64:
>
> Without these patches: ~38.000.000 CR8 writes intercepted
> With these patches: ~38.000 CR8 writes intercepted
>
>
Applied all, thanks. Good patchset.
--
Any sufficiently difficult bug is indistinguishable from a feature.
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prev parent reply other threads:[~2008-04-18 16:07 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-16 14:51 [PATCH 0/5] SVM CR8 optimization patches Joerg Roedel
2008-04-16 14:51 ` [PATCH 1/5] SVM: sync TPR value to V_TPR field in the VMCB Joerg Roedel
2008-04-16 14:51 ` [PATCH 2/5] X86: export kvm_lapic_set_tpr to modules Joerg Roedel
2008-04-16 14:51 ` [PATCH 3/5] SVM: sync V_TPR with LAPIC.TPR if CR8 write intercept is disabled Joerg Roedel
2008-04-16 14:51 ` [PATCH 4/5] SVM: disable CR8 intercept when tpr is not masking interrupts Joerg Roedel
2008-04-16 14:51 ` [PATCH 5/5] SVM: remove now obsolete FIXME comment Joerg Roedel
2008-04-18 16:07 ` Avi Kivity [this message]
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