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Date: Fri, 13 Sep 2002 04:17:15 -0600 (MDT)
From: Thunder from the hill <thunder@lightweight.ods.org>
X-X-Sender: thunder@hawkeye.luckynet.adm
To: Giuliano Pochini <pochini@shiny.it>
cc: riel@conectiva.com.br,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
       Jim Sibley <jlsibley@us.ibm.com>, Alan Cox <alan@lxorguk.ukuu.org.uk>,
       Jesse Pollard <pollard@admin.navo.hpc.mil>
Subject: Re: Killing/balancing processes when overcommited
In-Reply-To: <XFMail.20020913095116.pochini@shiny.it>
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Hi,

On Fri, 13 Sep 2002, Giuliano Pochini wrote:
> > ...the last of the user who has the most processes?
> 
> No, the last one it's likely to be the sysadmin that
> logged in to try to fix the situation.

Not exactly.

if (we run oom) {
	if (we find a malloc() eater) {
		kill it;
	} else if (there's an ->user<- who forked lots of processes) {
		kill some;
	} else {
		kill randomly, based on some table, or whatever...;
	}
}

Means we only kill processes if (task->euid) in the second stage. Malloc 
eaters are likely to be system jobs (such as data servers), so we better 
don't check the UID then.

			Thunder
-- 
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