From: Ingo Molnar <mingo@elte.hu>
To: Olof Johansson <olof@lixom.net>
Cc: linux-kernel@vger.kernel.org, Peter Zijlstra <a.p.zijlstra@chello.nl>
Subject: Re: Scheduler(?) regression from 2.6.22 to 2.6.24 for short-lived threads
Date: Sat, 9 Feb 2008 01:08:30 +0100 [thread overview]
Message-ID: <20080209000829.GA29986@elte.hu> (raw)
In-Reply-To: <20080209000456.GA21021@lixom.net>
* Olof Johansson <olof@lixom.net> wrote:
> 2.6.22: 3332 ms
> 2.6.23: 4397 ms
> 2.6.24: 8953 ms
> 2.6.24-git19: 8986 ms
if you enable SCHED_DEBUG, and subtract 4 from the value of
/proc/sys/kernel/sched_features, does it get any better?
if not, does writing 0 into /proc/sys/kernel/sched_features have any
impact?
Ingo
next prev parent reply other threads:[~2008-02-09 0:08 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-09 0:04 Scheduler(?) regression from 2.6.22 to 2.6.24 for short-lived threads Olof Johansson
2008-02-09 0:08 ` Ingo Molnar [this message]
2008-02-09 0:32 ` Olof Johansson
2008-02-09 7:58 ` Mike Galbraith
2008-02-09 8:03 ` Willy Tarreau
2008-02-09 10:58 ` Mike Galbraith
2008-02-09 11:40 ` Willy Tarreau
2008-02-09 13:37 ` Mike Galbraith
2008-02-09 16:19 ` Willy Tarreau
2008-02-09 17:33 ` Mike Galbraith
2008-02-10 5:29 ` Olof Johansson
2008-02-10 6:15 ` Willy Tarreau
2008-02-10 7:00 ` Olof Johansson
2008-02-10 7:58 ` Willy Tarreau
2008-02-11 8:15 ` Mike Galbraith
2008-02-11 17:26 ` Olof Johansson
2008-02-11 19:58 ` Mike Galbraith
2008-02-11 20:31 ` Olof Johansson
2008-02-12 9:23 ` Mike Galbraith
2008-02-13 5:49 ` Mike Galbraith
2008-02-11 21:45 ` Bill Davidsen
2008-02-12 4:30 ` Mike Galbraith
[not found] <fa.6N2dhyJ1cmBqiuFKgCaYfwduM+0@ifi.uio.no>
2008-02-09 1:49 ` Robert Hancock
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