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From: David Howells <dhowells@redhat.com>
To: "Theodore Ts'o" <tytso@mit.edu>
Cc: dhowells@redhat.com, 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 19:56:52 +0100	[thread overview]
Message-ID: <21934.1276109812@redhat.com> (raw)
In-Reply-To: <E1OMQ88-0002a1-Gb@closure.thunk.org>

Theodore Ts'o <tytso@mit.edu> 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

David

  reply	other threads:[~2010-06-09 18:56 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 [this message]
2010-06-09 19:00   ` David Howells
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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