From: Dave Jones <davej@codemonkey.org.uk>
To: Ingo Oeser <ingo.oeser@informatik.tu-chemnitz.de>
Cc: Andi Kleen <ak@suse.de>, Jamie Lokier <jamie@shareable.org>,
"Martin J. Bligh" <mbligh@aracnet.com>,
linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [Bug 350] New: i386 context switch very slow compared to 2.4 due to wrmsr (performance)
Date: Wed, 12 Feb 2003 18:13:46 +0000 [thread overview]
Message-ID: <20030212181346.GC19921@codemonkey.org.uk> (raw)
In-Reply-To: <20030212185200.A629@nightmaster.csn.tu-chemnitz.de>
On Wed, Feb 12, 2003 at 06:52:00PM +0100, Ingo Oeser wrote:
> On Wed, Feb 12, 2003 at 11:45:08AM +0100, Andi Kleen wrote:
> > [...] I have no real interest in vm86 mode, perhaps one of the people
> > interested in dosemu etc. could take care of it. I'm very glad it doesn't
> > exist on my main architecture - x86-64 - given how many hacks it needs to be
> > supported.
>
> So what about making it a CONFIG_XXX option? The few dosemu users
> could then configure it in.
Overkill. Andi's TF_VM86 fix looks to be the nicest way to do it.
If you don't use dosemu etc, the wrmsr should never be hit.
Dave
--
| Dave Jones. http://www.codemonkey.org.uk
| SuSE Labs
next prev parent reply other threads:[~2003-02-12 18:08 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-02-12 1:35 [Bug 350] New: i386 context switch very slow compared to 2.4 due to wrmsr (performance) Martin J. Bligh
2003-02-12 2:59 ` Dave Jones
2003-02-12 4:21 ` Jamie Lokier
2003-02-12 5:49 ` Linus Torvalds
2003-02-12 10:12 ` Jamie Lokier
2003-03-10 3:07 ` Linus Torvalds
2003-03-10 11:06 ` Andi Kleen
2003-03-10 18:33 ` Linus Torvalds
2003-03-10 22:44 ` Linus Torvalds
2003-02-12 12:54 ` Dave Jones
2003-02-12 7:50 ` Andi Kleen
2003-02-12 10:27 ` Jamie Lokier
2003-02-12 10:45 ` Andi Kleen
2003-02-12 17:52 ` Ingo Oeser
2003-02-12 18:13 ` Dave Jones [this message]
2003-02-12 18:18 ` Andi Kleen
2003-02-13 2:42 ` Alan Cox
2003-02-13 5:17 ` Eric W. Biederman
2003-02-13 18:07 ` Andi Kleen
2003-02-14 0:14 ` [discuss] " Peter Tattam
2003-02-14 1:29 ` Andi Kleen
2003-02-14 1:51 ` Eric Northup
2003-02-14 2:01 ` Peter Tattam
2003-02-14 4:07 ` Thomas J. Merritt
2003-02-14 9:38 ` Peter Finderup Lund
2003-02-14 8:27 ` Eric W. Biederman
2003-03-19 1:22 ` Rob Landley
2003-02-12 4:18 ` Jamie Lokier
2003-02-12 5:54 ` Linus Torvalds
2003-02-12 10:18 ` Jamie Lokier
2003-02-12 17:24 ` Linus Torvalds
2003-03-18 15:24 ` Kevin Pedretti
2003-03-18 16:41 ` Linus Torvalds
2003-03-18 18:30 ` Brian Gerst
2003-03-18 19:14 ` Thomas Molina
2003-03-18 19:21 ` Linus Torvalds
2003-03-18 20:03 ` Thomas Schlichter
2003-03-18 20:24 ` Steven Cole
2003-03-19 0:42 ` H. Peter Anvin
2003-03-19 2:22 ` george anzinger
[not found] <20030318165013$55f4@gated-at.bofh.it>
[not found] ` <20030318184010$6448@gated-at.bofh.it>
2003-03-18 20:19 ` Pascal Schmidt
-- strict thread matches above, loose matches on Subject: below --
2003-03-19 9:55 Ph. Marek
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=20030212181346.GC19921@codemonkey.org.uk \
--to=davej@codemonkey.org.uk \
--cc=ak@suse.de \
--cc=ingo.oeser@informatik.tu-chemnitz.de \
--cc=jamie@shareable.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mbligh@aracnet.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