linux-kernel - Re: [PATCH] oom_kill: use rss value instead of vm size for badness

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Date:	Sat, 07 Nov 2009 20:16:09 +0100
From:	Vedran Furač <vedran.furac@...il.com>
To:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
CC:	David Rientjes <rientjes@...gle.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Hugh Dickins <hugh.dickins@...cali.co.uk>,
	Andrea Arcangeli <aarcange@...hat.com>
Subject: Re: [PATCH] oom_kill: use rss value instead of vm size for badness

KOSAKI Motohiro wrote:

> Your Xorg have pretty large heap. I'm not sure why it happen. (ATI
> video card issue?)

It is ATI (fglrx), but I don't know if it is driver's issue or not. I
have a lot of apps running, firefox with high number of tabs and so on.
It adds up probably.

> Unfortunatelly, It is showed as normal large heap from kernel. then, 
> I doubt kernel can distinguish X from other process. Probably oom-adj
> is most reasonable option....
>
> -------------------------------------------------
> [heap]
> Size:             433812 kB
> Rss:              433304 kB
> Pss:              433304 kB
> Shared_Clean:          0 kB
> Shared_Dirty:          0 kB
> Private_Clean:       280 kB
> Private_Dirty:    433024 kB
> Referenced:       415656 kB
> Swap:                  0 kB
> KernelPageSize:        4 kB
> MMUPageSize:           4 kB



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