From: arjan@fenrus.demon.nl
To: kravetz@us.ibm.com (Mike Kravetz)
Cc: linux-kernel@vger.kernel.org
Subject: Re: Context switch times
Date: Thu, 04 Oct 2001 22:14:13 +0100 [thread overview]
Message-ID: <E15pFor-0004sC-00@fenrus.demon.nl> (raw)
In-Reply-To: <20011004140417.C1245@w-mikek2.des.beaverton.ibm.com>
In article <20011004140417.C1245@w-mikek2.des.beaverton.ibm.com> you wrote:
> 2.4.10 on 8 CPUs: lat_ctx -s 0 -r 2 results
> "size=0k ovr=2.27
> 2 3.86
> 2.2.16-22 on 8 CPUS: lat_ctx -s 0 -r 2 results
> "size=0k ovr=1.99
> 2 1.44
> As you can see, the context switch times for 2.4.10 are more
> than double what they were for 2.2.16-22 in this example.
> Comments?
2.4.x supports SSE on pentium III/athlons, so the SSE registers need to be
saved/restored on a taskswitch as well.... that's not exactly free.
next prev parent reply other threads:[~2001-10-04 21:14 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-10-04 21:04 Mike Kravetz
2001-10-04 21:14 ` arjan [this message]
2001-10-04 21:39 ` Richard Gooch
2001-10-09 4:55 ` Richard Gooch
2001-10-09 13:49 ` bill davidsen
2001-10-04 21:25 ` David S. Miller
2001-10-04 21:52 ` David S. Miller
2001-10-04 21:55 ` Benjamin LaHaise
2001-10-04 22:35 ` Davide Libenzi
2001-10-04 22:49 ` Mike Kravetz
2001-10-04 22:42 ` Linus Torvalds
2001-10-04 22:53 ` Benjamin LaHaise
2001-10-05 15:13 ` Alan Cox
2001-10-05 17:49 ` george anzinger
2001-10-05 22:29 ` Alan Cox
2001-10-05 22:56 ` Davide Libenzi
2001-10-05 23:04 ` Alan Cox
2001-10-05 23:16 ` Davide Libenzi
2001-10-05 23:17 ` Alan Cox
2001-10-05 23:21 ` Davide Libenzi
2001-10-05 23:43 ` Roger Larsson
2001-10-07 1:20 ` george anzinger
2001-10-07 1:33 ` Bill Davidsen
2001-10-07 9:56 ` Alan Cox
2001-10-06 2:24 ` Albert D. Cahalan
2001-10-06 2:57 ` Davide Libenzi
2001-10-07 9:57 ` Mika Liljeberg
2001-10-07 13:03 ` Ingo Oeser
2001-10-07 13:48 ` Mika Liljeberg
2001-10-07 14:24 ` Ingo Oeser
2001-10-07 14:33 ` Mika Liljeberg
2001-10-07 18:00 ` george anzinger
2001-10-07 22:06 ` Mika Liljeberg
2001-10-07 22:31 ` Davide Libenzi
2001-10-07 22:33 ` Mika Liljeberg
2001-10-07 23:49 ` george anzinger
2001-10-08 21:07 ` Mika Liljeberg
2001-10-08 22:54 ` discontig physical memory Petko Manolov
2001-10-08 23:05 ` David S. Miller
2001-10-08 23:18 ` Petko Manolov
2001-10-08 23:29 ` David S. Miller
2001-10-09 0:34 ` Petko Manolov
2001-10-09 0:36 ` Petko Manolov
2001-10-09 1:37 ` David S. Miller
2001-10-09 2:43 ` Petko Manolov
2001-10-08 15:19 ` Context switch times bill davidsen
2001-10-10 6:07 ` Mike Fedyk
2001-10-07 18:39 ` Davide Libenzi
2001-10-09 20:37 ` Hubertus Franke
2001-10-09 23:50 ` george anzinger
2001-10-11 10:52 ` Hubertus Franke
2001-10-04 23:41 ` Mike Kravetz
2001-10-04 23:50 ` Linus Torvalds
2001-10-05 15:15 ` Eric W. Biederman
2001-10-04 23:56 ` Davide Libenzi
2001-10-05 0:45 ` Andrea Arcangeli
2001-10-05 4:35 ` Mike Kravetz
2001-10-07 17:59 ` Andrea Arcangeli
2001-10-07 19:54 ` george anzinger
2001-10-07 20:24 ` Andrea Arcangeli
2001-10-09 5:00 ` David S. Miller
2001-10-05 6:31 Michailidis, Dimitrios
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=E15pFor-0004sC-00@fenrus.demon.nl \
--to=arjan@fenrus.demon.nl \
--cc=kravetz@us.ibm.com \
--cc=linux-kernel@vger.kernel.org \
/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
all inboxes | Powered by JetHome®