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

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Message-Id: <20091030084134.fc968a90.kamezawa.hiroyu@jp.fujitsu.com>
Date:	Fri, 30 Oct 2009 08:41:34 +0900
From:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
To:	David Rientjes <rientjes@...gle.com>
Cc:	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>, vedran.furac@...il.com,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
Subject: Re: [PATCH] oom_kill: use rss value instead of vm size for badness

On Thu, 29 Oct 2009 02:44:45 -0700 (PDT)
David Rientjes <rientjes@...gle.com> wrote:
> >   Then,
> >   - I'd like to drop file_rss.
> >   - I'd like to take swap_usage into acccount.
> >   - I'd like to remove cpu_time bonus. runtime bonus is much more important.
> >   - I'd like to remove penalty from children. To do that, fork-bomb detector
> >     is necessary.
> >   - nice bonus is bad. (We have oom_adj instead of this.) It should be
> >     if (task_nice(p) < 0)
> > 	points /= 2;
> >     But we have "root user" bonus already. We can remove this line.
> > 
> > After above, much more simple selection, easy-to-understand,  will be done.
> > 
> 
> Agreed, I think we'll need to rewrite most of the heuristic from scratch.

I'd like to post total redesgin of oom-killer in the next week.
plz wait.

Thanks,
-Kame

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