From: Glauber de Oliveira Costa <gcosta@redhat.com>
To: Zachary Amsden <zach@vmware.com>
Cc: Ingo Molnar <mingo@elte.hu>,
linux-kernel@vger.kernel.org, tglx@linutronix.de,
rusty@rustcorp.com.au, jeremy@goop.org, --cc@redhat.com,
avi@quramnet.com, kvm-devel@lists.sourceforge.net,
Glauber de Oliveira Costa <glauber@t60.localdomain>,
Dan Hecht <dhecht@vmware.com>, Garrett Smith <garrett@vmware.com>
Subject: Re: [PATCH] raise tsc clocksource rating
Date: Tue, 30 Oct 2007 09:59:42 -0200 [thread overview]
Message-ID: <47271CAE.8000907@redhat.com> (raw)
In-Reply-To: <1193698505.9793.90.camel@bodhitayantram.eng.vmware.com>
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Zachary Amsden escreveu:
> On Mon, 2007-10-29 at 23:48 +0100, Ingo Molnar wrote:
>> * Zachary Amsden <zach@vmware.com> wrote:
>
>> if it's inaccurate why are you exposing it to the guest then? Native
>> only uses the TSC if it's safe and accurate to do so.
>
> Not every guest support paravirt, but for correctness, all guests
> require TSC, which must be exposed all the way up to userspace, no
> matter what the efficiency or accuracy may be.
>
> Zach
>
However, with such accuracy, it will fail the tsc clocksources tests. If
it passes, it'a good clocksource to use.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.7 (GNU/Linux)
Comment: Using GnuPG with Remi - http://enigmail.mozdev.org
iD8DBQFHJxyujYI8LaFUWXMRAhI5AKCDl/O7iA3TdtpvElVg8NoSDVfKpgCeNvz3
ZEZDMxg8T7FA2R+5cgH/uKI=
=8qSH
-----END PGP SIGNATURE-----
next prev parent reply other threads:[~2007-10-30 11:59 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-29 23:10 [PATCH] raise tsc clocksource rating Glauber de Oliveira Costa
2007-10-29 22:17 ` Thomas Gleixner
2007-10-29 22:36 ` Ingo Molnar
2007-10-30 1:26 ` john stultz
2007-10-30 2:39 ` Rusty Russell
2007-10-30 7:37 ` Ingo Molnar
2007-10-30 10:52 ` Rusty Russell
2007-10-30 12:13 ` Glauber de Oliveira Costa
2007-10-29 22:42 ` Zachary Amsden
2007-10-29 22:45 ` Jeremy Fitzhardinge
2007-10-29 22:48 ` Ingo Molnar
2007-10-29 22:52 ` Jeremy Fitzhardinge
2007-10-29 22:55 ` Ingo Molnar
2007-10-29 23:17 ` Jeremy Fitzhardinge
2007-10-29 23:21 ` Ingo Molnar
2007-10-29 23:33 ` Jeremy Fitzhardinge
2007-10-30 0:45 ` Ian Pratt
2007-10-30 7:19 ` Ingo Molnar
2007-10-29 22:55 ` Zachary Amsden
2007-10-29 23:02 ` Ingo Molnar
2007-10-29 23:13 ` Zachary Amsden
2007-10-29 23:17 ` Ingo Molnar
2007-10-30 12:02 ` Glauber de Oliveira Costa
2007-10-30 17:58 ` Zachary Amsden
2007-10-29 23:24 ` Dan Hecht
2007-10-30 4:24 ` [kvm-devel] " Avi Kivity
2007-10-30 7:14 ` Ingo Molnar
2007-10-30 11:59 ` Glauber de Oliveira Costa [this message]
2007-10-30 0:17 ` H. Peter Anvin
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=47271CAE.8000907@redhat.com \
--to=gcosta@redhat.com \
--cc=--cc@redhat.com \
--cc=avi@quramnet.com \
--cc=dhecht@vmware.com \
--cc=garrett@vmware.com \
--cc=glauber@t60.localdomain \
--cc=jeremy@goop.org \
--cc=kvm-devel@lists.sourceforge.net \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@elte.hu \
--cc=rusty@rustcorp.com.au \
--cc=tglx@linutronix.de \
--cc=zach@vmware.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox