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.
-------------------------------------------------------------------------
This SF.net email is sponsored by the 2008 JavaOne(SM) Conference
Don't miss this year's exciting event. There's still time to save $100.
Use priority code J8TL2D2.
http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone
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]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4808C747.1000404@qumranet.com \
--to=avi@qumranet.com \
--cc=joerg.roedel@amd.com \
--cc=kvm-devel@lists.sourceforge.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox