linux-kernel - Re: VM issue causing high CPU loads

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Date:	Wed, 26 Aug 2009 13:55:34 +0200
From:	Yohan <kernel@...an.staff.proxad.net>
To:	Mel Gorman <mel@....ul.ie>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: VM issue causing high CPU loads

Mel Gorman wrote:
> On Mon, Aug 24, 2009 at 04:21:55PM -0700, Andrew Morton wrote:
>   
>> On Mon, 24 Aug 2009 16:23:22 +0200
>> Yohan <kernel@...an.staff.proxad.net> wrote:
>>     
>>> Hi,
>>>
>>>     Is someone have an idea for that :
>>>
>>>         http://bugzilla.kernel.org/show_bug.cgi?id=14024
>>>       
>> Please generate a kernel profile to work out where all the CPU tie is
>> being spent.  Documentation/basic_profiling.txt is a starting point.
>>     
> In the absense of a profile, here is a total stab in the dark. Is this a
> NUMA machine? 
This is a Intel(R) Xeon(R) CPU E5520 on Dell R610
> If so, is /proc/sys/vm/zone_reclaim_mode set to 1 and does
> setting it to 0 help?
>   
The value is already 0...


Thanks
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