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From: Andrea Righi <righi.andrea@gmail.com>
To: Chris Frey <cdfrey@foursquare.net>
Cc: linux-kernel@vger.kernel.org
Subject: Re: OOM policy, overcommit control, and soft limits
Date: Sat, 31 May 2008 18:41:18 +0200	[thread overview]
Message-ID: <48417FAE.7040103@gmail.com> (raw)
In-Reply-To: <20080531102752.GA25244@foursquare.net>

Chris Frey wrote:
> I'm sure someone has thought of this before me.  Does anything remotely
> similar to this already exist?  I've googled for OOM policy, but so far
> all I've seen is Rusty Lynch's patch from 2003, and really, I want this
> behaviour to happen when there is still a bit of memory left, so things
> can be dealt with before they are OOM-level dire.

Have you seen the OOM killer policy implemented in memory the resource
controller?
http://kernelnewbies.org/Linux_2_6_25#head-450b26e12955b8035a05cf07b3f31c501ee4bfab

BTW read the TODO comment in this commit log... ;-)
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c7ba5c9e8176704bfac0729875fa62798037584d

Maybe a possible solution could be to just run critical and non-critical
applications in 2 different cgroups, using different memory policies.
Anyway, userspace OOM handling would surely permit to implement more
interesting features.

-Andrea

  parent reply	other threads:[~2008-05-31 16:41 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-05-31 10:27 OOM policy, overcommit control, and soft limits Chris Frey
2008-05-31 13:15 ` Alan Cox
2008-05-31 16:41 ` Andrea Righi [this message]
     [not found] <azwvH-5QW-5@gated-at.bofh.it>
2008-05-31 12:48 ` Alan Jenkins
2008-05-31 15:23   ` Alan Cox
2008-05-31 16:45     ` Alan Jenkins

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