From: Guillaume Foliard <guifo@wanadoo.fr>
To: linux-kernel@vger.kernel.org
Subject: Scheduler degradation since 2.5.66
Date: Sun, 14 Dec 2003 20:48:51 +0100 [thread overview]
Message-ID: <200312142048.51579.guifo@wanadoo.fr> (raw)
Hello,
I have been playing with kernel 2.5/2.6 for around 6 months now. I was quite
pleased with 2.5.65 to see that the soft real-time behaviour was much better
than 2.4.x. Since then I tried most of the 2.5/2.6 versions. But recently
someone warned me about some degradations with 2.6.0-test6. To show the
degradation since 2.5.66 I have run a simple test program on most of the
versions. This simple program is measuring the time it takes to a process to
be woken up after a call to nanosleep.
As the results are plots, please visit this small website for more
information : http://perso.wanadoo.fr/kayakgabon/linux
I'm ready to perform more tests or provide more information if necessary.
Guillaume
next reply other threads:[~2003-12-14 19:48 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-12-14 19:48 Guillaume Foliard [this message]
2003-12-15 2:45 ` Nick Piggin
2003-12-15 4:18 ` Nick Piggin
2003-12-16 0:39 ` George Anzinger
2003-12-16 0:52 ` Jamie Lokier
2003-12-16 7:45 ` George Anzinger
2004-01-15 0:43 ` Bill Davidsen
2004-01-15 3:36 ` George Anzinger
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=200312142048.51579.guifo@wanadoo.fr \
--to=guifo@wanadoo.fr \
--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®