From: David Howells <dhowells@redhat.com>
To: unlisted-recipients:; (no To-header on input)
Cc: dhowells@redhat.com, "Theodore Ts'o" <tytso@mit.edu>,
Dave Airlie <airlied@redhat.com>,
linux-kernel@vger.kernel.org
Subject: Re: Why is kslowd accumulating so much CPU time?
Date: Wed, 09 Jun 2010 20:00:45 +0100 [thread overview]
Message-ID: <22070.1276110045@redhat.com> (raw)
In-Reply-To: <21934.1276109812@redhat.com>
David Howells <dhowells@redhat.com> wrote:
> > Is there any way to easily see what is scheduling themselves to use the
> > slow workqueue?
>
> Slow work has debugging. Turn on:
>
> CONFIG_SLOW_WORK_DEBUG=y
>
> then do:
>
> watch -n0 cat /sys/kernel/debug/slow_work/runqueue
I documented this, of course. Look in:
Documentation/slow-work.txt
in section "VIEWING EXECUTING AND QUEUED ITEMS".
David
next prev parent reply other threads:[~2010-06-09 19:00 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-09 18:36 Why is kslowd accumulating so much CPU time? Theodore Ts'o
2010-06-09 18:56 ` David Howells
2010-06-09 19:00 ` David Howells [this message]
2010-06-13 8:23 ` Dave Airlie
2010-06-13 19:49 ` tytso
2010-06-13 20:00 ` Dave Airlie
2010-06-14 18:42 ` Nick Bowler
2010-06-14 21:46 ` tytso
2010-06-15 17:25 ` Andy Whitcroft
2010-06-15 18:07 ` David Howells
2010-06-16 11:37 ` Andy Whitcroft
2010-06-16 13:33 ` Andy Whitcroft
2010-06-16 14:36 ` Nick Bowler
2010-06-16 14:55 ` Andy Whitcroft
2010-06-17 13:25 ` Nick Bowler
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