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Date:	Wed, 5 Dec 2007 10:34:12 +0100
From:	Ingo Molnar <>
To:	Gregory Haskins <>
Subject: Re: [PATCH 3/3] Subject: SCHED - Use a 2-d bitmap for searching
	lowest-pri CPU

* Gregory Haskins <> wrote:

> The current code use a linear algorithm which causes scaling issues on 
> larger SMP machines.  This patch replaces that algorithm with a 
> 2-dimensional bitmap to reduce latencies in the wake-up path.

hm, what kind of scaling issues - do you have any numbers? What workload 
did you measure and on what hardware?

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