linux-kernel - Re: [PATCH 3/3] sched: Disable affine wakeups by default

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Message-Id: <1256536660.8150.3.camel@marge.simson.net>
Date:	Mon, 26 Oct 2009 06:57:40 +0100
From:	Mike Galbraith <efault@....de>
To:	Arjan van de Ven <arjan@...radead.org>
Cc:	Peter Zijlstra <peterz@...radead.org>, mingo@...e.hu,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3] sched: Disable affine wakeups by default

On Mon, 2009-10-26 at 06:47 +0100, Mike Galbraith wrote:
> On Sun, 2009-10-25 at 22:36 -0700, Arjan van de Ven wrote:

> > if you're a multicore domain you better have a shared cache.. that's
> > what it should mean. If it does not we should fix that.
> 
> Sounds reasonable to me.  I'll go make explosions.

(Actually, if multicode and sibling does indeed mean shared cache, no
arch tinkering should be necessary, just reset SD_WAKE_AFFINE when
degenerating should work fine.  Only thing is multicore with siblings..
and test test test)

	-Mike

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