linux-kernel - Re: [why oom_adj does not work] Re: Linux killed Kenny, bastard!

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Date:	Wed, 14 Jan 2009 16:54:09 -0800 (PST)
From:	David Rientjes <rientjes@...gle.com>
To:	Evgeniy Polyakov <zbr@...emap.net>
cc:	Bodo Eggert <7eggert@....de>, Alan Cox <alan@...rguk.ukuu.org.uk>,
	Dave Jones <davej@...hat.com>, linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [why oom_adj does not work] Re: Linux killed Kenny, bastard!

On Wed, 14 Jan 2009, Evgeniy Polyakov wrote:

> This does not work if processes are short-living and are spawned by the
> parent on demand. If processes have different priority in regards to oom
> condition, this problem can not be solved with existing interfaces
> without changing the application. So effectively there is no solution.
> 

Wrong, you can change how the application is forked.  Either immediately 
adjust /proc/$!/oom_adj or use the adjustment inheritance property and 
change /proc/$$/oom_adj to the desired value prior to forking.  Thanks.
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