linux-kernel - Re: [RFC PATCH] sched: Reduce overestimating avg

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Message-ID: <20130801074829.GH3008@twins.programming.kicks-ass.net>
Date:	Thu, 1 Aug 2013 09:48:29 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Jason Low <jason.low2@...com>
Cc:	Rik van Riel <riel@...hat.com>, Ingo Molnar <mingo@...hat.com>,
	KML <linux-kernel@...r.kernel.org>,
	Mike Galbraith <efault@....de>,
	Thomas Gleixner <tglx@...utronix.de>,
	Paul Turner <pjt@...gle.com>, Alex Shi <alex.shi@...el.com>,
	Preeti U Murthy <preeti@...ux.vnet.ibm.com>,
	Vincent Guittot <vincent.guittot@...aro.org>,
	Morten Rasmussen <morten.rasmussen@....com>,
	Namhyung Kim <namhyung@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Kees Cook <keescook@...omium.org>,
	Mel Gorman <mgorman@...e.de>, aswin@...com,
	scott.norton@...com, chegu_vinod@...com,
	Srikar Dronamraju <srikar@...ux.vnet.ibm.com>
Subject: Re: [RFC PATCH] sched: Reduce overestimating avg_idle

On Thu, Aug 01, 2013 at 12:36:41AM -0700, Jason Low wrote:
> So how acceptable is setting a limit of 2*migration cost or less on the
> delta rather than on the avg?

Its fine with me as we're already doing that. But since you asked last
time around if those two things weren't unrelated etc.. 
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