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

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Message-Id: <1256534516.7117.56.camel@marge.simson.net>
Date:	Mon, 26 Oct 2009 06:21:56 +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 Sun, 2009-10-25 at 12:33 -0700, Arjan van de Ven wrote:

> we may not agree on what to do if there's no completely free logical
> cpu, but a much lighter loaded one instead.
> but first we need to let code speak ;)

BTW, we agree here too, it's just that cache traffic generated by
ripping high frequency buddies apart can be hugely expensive, so much
caution required.  Someone needs to get off his duff, and invent ram
that doesn't suck.

	-Mike

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