Messages in this thread | | | Date | Wed, 5 Dec 2007 10:34:12 +0100 | From | Ingo Molnar <> | Subject | Re: [PATCH 3/3] Subject: SCHED - Use a 2-d bitmap for searching lowest-pri CPU |
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* Gregory Haskins <ghaskins@novell.com> 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?
Ingo
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