linux-kernel - Re: [RFC] oom-kill: give the dying task a higher priority

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Message-ID: <1275551449.27810.34905.camel@twins>
Date:	Thu, 03 Jun 2010 09:50:49 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	David Rientjes <rientjes@...gle.com>
Cc:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	"Luis Claudio R. Goncalves" <lclaudio@...g.org>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Minchan Kim <minchan.kim@...il.com>, balbir@...ux.vnet.ibm.com,
	Oleg Nesterov <oleg@...hat.com>, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, Thomas Gleixner <tglx@...utronix.de>,
	Mel Gorman <mel@....ul.ie>, williams@...hat.com
Subject: Re: [RFC] oom-kill: give the dying task a higher priority

On Wed, 2010-06-02 at 14:11 -0700, David Rientjes wrote:
> 
> And that can reduce the runtime of the thread holding a writelock on 
> mm->mmap_sem, making the exit actually take longer than without the patch 
> if its priority is significantly higher, especially on smaller machines. 

/me smells an inversion... on -rt we solved those ;-)
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