linux-kernel - Re: [PATCH] badness() dramatically overcounts memory

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Date:	Wed, 06 Feb 2008 09:30:44 +0530
From:	Balbir Singh <balbir@...ux.vnet.ibm.com>
To:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
CC:	David Rientjes <rientjes@...gle.com>,
	Jeff Davis <linux@...avis.com>, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, Andrea Arcangeli <andrea@...ranet.com>
Subject: Re: [PATCH] badness() dramatically overcounts memory

KOSAKI Motohiro wrote:
> Hi
> 
>>>> The interesting thing is the use of total_vm and not the RSS which is used as
>>>> the basis by the OOM killer. I need to read/understand the code a bit more.
>>> RSS makes more sense to me as well.
>> Andrea Arcangeli has patches pending which change this to the RSS.  
>> Specifically:
>>
>> 	http://marc.info/?l=linux-mm&m=119977937126925
> 
> I agreed with you that RSS is better :)
> 
> 
> 
> but..
> on many node numa, per zone rss is more better..

Do we have a per zone RSS per task? I don't remember seeing it.


-- 
	Warm Regards,
	Balbir Singh
	Linux Technology Center
	IBM, ISTL
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