From: Andi Kleen <andi@firstfloor.org>
To: Avi Kivity <avi@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>,
Marcelo Tosatti <mtosatti@redhat.com>,
kvm@vger.kernel.org
Subject: Re: [PATCH] KVM: Defer remote tlb flushes on invlpg (v2)
Date: Wed, 18 Mar 2009 01:41:04 +0100 [thread overview]
Message-ID: <87y6v31x3z.fsf@basil.nowhere.org> (raw)
In-Reply-To: <1237201670-5572-1-git-send-email-avi@redhat.com> (Avi Kivity's message of "Mon, 16 Mar 2009 13:07:50 +0200")
Avi Kivity <avi@redhat.com> writes:
> KVM flushes tlbs on remote cpus for two purposes: to protect guest pages
> that it needs to collect information about, and to prevent stale tlb entries
> from pointing to pages that no longer belong to the guest.
I assume you have numbers with some benchmark how much that
improves performance. It would be nice to add them to the
commit log.
-Andi
--
ak@linux.intel.com -- Speaking for myself only.
next prev parent reply other threads:[~2009-03-18 0:43 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-16 11:07 [PATCH] KVM: Defer remote tlb flushes on invlpg (v2) Avi Kivity
2009-03-17 19:47 ` Marcelo Tosatti
2009-03-18 0:41 ` Andi Kleen [this message]
2009-03-18 6:23 ` Avi Kivity
2009-03-18 22:53 ` Andrea Arcangeli
2009-03-19 10:27 ` Avi Kivity
2009-03-19 10:29 ` Avi Kivity
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=87y6v31x3z.fsf@basil.nowhere.org \
--to=andi@firstfloor.org \
--cc=aarcange@redhat.com \
--cc=avi@redhat.com \
--cc=kvm@vger.kernel.org \
--cc=mtosatti@redhat.com \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.