From: Mike Galbraith <efault@gmx.de>
Date: Wed, 9 Sep 2009 13:41:37 +0000 (+0200)
Subject: sched: Re-tune the scheduler latency defaults to decrease worst-case latencies
X-Git-Tag: v2.6.32-rc1~719^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=172e082a9111ea504ee34cbba26284a5ebdc53a7;p=pandora-kernel.git

sched: Re-tune the scheduler latency defaults to decrease worst-case latencies

Reduce the latency target from 20 msecs to 5 msecs.

Why? Larger latencies increase spread, which is good for scaling,
but bad for worst case latency.

We still have the ilog(nr_cpus) rule to scale up on bigger
server boxes.

Signed-off-by: Mike Galbraith <efault@gmx.de>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1252486344.28645.18.camel@marge.simson.net>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

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