linux-kernel - Re: Plumbers: Tweaking scheduler policy micro-conf RFP

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Date:	Tue, 15 May 2012 14:59:05 +0200
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	Pantelis Antoniou <pantelis.antoniou@...il.com>
Cc:	Vincent Guittot <vincent.guittot@...aro.org>,
	mou Chen <hi3766691@...il.com>, linux-kernel@...r.kernel.org,
	Ingo Molnar <mingo@...nel.org>, torvalds@...ux-foundation.org
Subject: Re: Plumbers: Tweaking scheduler policy micro-conf RFP

On Tue, 2012-05-15 at 15:32 +0300, Pantelis Antoniou wrote:
> 
> Well, I don't plan to feed the load-balancer all this crap. What I'm thinking
> is take those N metrics, form a vector according to some (yet unknown) weighting 
> factors, and schedule according to the vector value, and how it 'fits' to a
> virtual bin representing a core and it's environment. 

Currently we only have a bit-vector and a retry loop. I suspect you can
make the multi-value vector map to a bit-vector if you can keep cpu wide
statistics to compare against as well.

We want to avoid having to do a full sort.

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