linux-kernel - Re: Linux killed Kenny, bastard!

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Message-ID: <20090113233654.GB31490@ioremap.net>
Date:	Wed, 14 Jan 2009 02:36:54 +0300
From:	Evgeniy Polyakov <zbr@...emap.net>
To:	Valdis.Kletnieks@...edu
Cc:	David Rientjes <rientjes@...gle.com>,
	Bill Davidsen <davidsen@....com>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: Linux killed Kenny, bastard!

On Tue, Jan 13, 2009 at 06:26:05PM -0500, Valdis.Kletnieks@...edu (Valdis.Kletnieks@...edu) wrote:
> On Tue, 13 Jan 2009 14:54:08 +0300, Evgeniy Polyakov said:
> 
> > Who should adjust the scores for newly created processes? Who should
> > check that processes in the first group have negative oom ajustment and
> > in the second group a positive value? Who determines when its time to
> > ajust the scores?
> 
> Are you saying that you, as the box's administrator, don't know the answers
> to those questions?
> 
> Or are you asking what the actual method of implementation is - which process
> is supposed to write to (possibly some other process) oom_adjust, and when?

Unfortunately I do not know the answers. Since all parameters are highly
dynamic and can not be always automatically tuned. And we do not have a
daemon to watch created processes. And in the general case we can not
change the application.

-- 
	Evgeniy Polyakov
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