linux-kernel - Re: [PATCH 17/19] sched, numa: Detect big processes

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Message-ID: <501853EA.10604@redhat.com>
Date:	Tue, 31 Jul 2012 17:53:46 -0400
From:	Rik van Riel <riel@...hat.com>
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
CC:	mingo@...nel.org, oleg@...hat.com, pjt@...gle.com,
	akpm@...ux-foundation.org, torvalds@...ux-foundation.org,
	tglx@...utronix.de, Lee.Schermerhorn@...com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 17/19] sched, numa: Detect big processes

On 07/31/2012 03:12 PM, Peter Zijlstra wrote:

> The current heuristic for determining if a task is 'big' is if its
> consuming more than 1/2 a node's worth of cputime. We might want to
> add a term here looking at the RSS of the process and compare this
> against the available memory per node.

This could probably use some refinement in the future, but
it looks like a reasonable start.

> Cc: Rik van Riel <riel@...hat.com>
> Cc: Paul Turner <pjt@...gle.com>
> Signed-off-by: Peter Zijlstra <a.p.zijlstra@...llo.nl>

Acked-by: Rik van Riel <riel@...hat.com>

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