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Re: long hangs when deleting large directories (3.0-rc3)

To: Dave Chinner <david@xxxxxxxxxxxxx>
Subject: Re: long hangs when deleting large directories (3.0-rc3)
From: Markus Trippelsdorf <markus@xxxxxxxxxxxxxxx>
Date: Tue, 21 Jun 2011 12:18:37 +0200
Cc: xfs@xxxxxxxxxxx
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In-reply-to: <20110621042513.GN32466@dastard>
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On 2011.06.21 at 14:25 +1000, Dave Chinner wrote:
> On Mon, Jun 20, 2011 at 01:13:59PM +0200, Markus Trippelsdorf wrote:
> That is, you really need to get a profile of the rm -rf process - or
> whatever is consuming the CPU time - (e.g. via perf or ftrace)
> across the hang to so we can narrow down the potential cause of the
> latency. Speaking of which, latencytop might be helpful in
> identifying where input is getting held up....

Just ran latencytop and this the result:

[xlog_state_get_iclog_space]                      2104.4 msec         38.1 %


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