linux-kernel - Re: Disregard: was Re: large intermittent latency spike 2.6.28 (and 2.6.27.10), bisect commit ca7e716c7833aeaeb8fedd6d004c5f5d5e14d325 -> Revert "sched_clock: prevent scd->clock from moving backwards"

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Date:	Wed, 31 Dec 2008 12:00:13 +0100
From:	Arjan van de Ven <arjan@...radead.org>
To:	Jayson King <dev@...sonking.com>
Cc:	linux-kernel@...r.kernel.org, mingo@...e.hu,
	torvalds@...ux-foundation.org, a.p.zijlstra@...llo.nl,
	shaggy@...ux.vnet.ibm.com, rjw@...k.pl, fabio.comolli@...il.com
Subject: Re: Disregard: was Re: large intermittent latency spike 2.6.28 (and
 2.6.27.10), bisect commit ca7e716c7833aeaeb8fedd6d004c5f5d5e14d325 ->
 Revert "sched_clock: prevent scd->clock from moving backwards"

On Wed, 31 Dec 2008 03:52:01 -0600
Jayson King <dev@...sonking.com> wrote:

> Please disregard this. I just had a latency spike again, so this is
> not the change I'm looking for... I'll need to look for what is
> causing it again, apparently not only the make -j 3 I thought, and do
> another test.


can you run latencytop to see if it can pinpoint a cause of latency?


-- 
Arjan van de Ven 	Intel Open Source Technology Centre
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