From: Andrew Morton <akpm@osdl.org>
To: Brad Laue <brad@brad-x.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: ksoftirqd using mysteriously high amounts of CPU time
Date: Wed, 10 Mar 2004 15:57:12 -0800 [thread overview]
Message-ID: <20040310155712.7472e31c.akpm@osdl.org> (raw)
In-Reply-To: <404F85A6.6070505@brad-x.com>
Brad Laue <brad@brad-x.com> wrote:
>
> I'm running into an issue where ksoftirqd/0 consumes a considerably
> larger amount of CPU time than it should, and begins to actively
> consume 99% CPU time during network operations.
Please ensure that the machine was booted with `profile=1' on
the kernel boot command line. The cost of this is negligible.
When the problem starts happening, run:
sudo readprofile -r
sleep 10
sudo readprofile -n -v -m /boot/System.map | sort -n +2 | tail -40
(make sure that /boot/System.map refers to the currently-running kernel)
next prev parent reply other threads:[~2004-03-10 23:55 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-03-10 21:16 Brad Laue
2004-03-10 23:57 ` Andrew Morton [this message]
2004-03-11 8:45 ` Brad Laue
2004-03-11 9:28 ` Brad Laue
2004-03-11 10:08 ` Andrew Morton
2004-03-11 14:05 ` Yury V. Umanets
2004-03-11 17:22 ` Brad Laue
2004-03-11 18:09 ` Yury V. Umanets
2004-03-11 18:21 ` Brad Laue
2004-03-11 18:24 ` Brad Laue
2004-03-12 17:51 ` Brad Laue
2004-03-11 14:00 ` Yury V. Umanets
[not found] <Pine.LNX.4.21.0403111916570.3466-100000@linux08.ece.utexas.edu>
2004-03-12 7:06 ` Brad Laue
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