From: Nick Piggin <nickpiggin@yahoo.com.au>
Date: Sat, 10 Sep 2005 07:26:16 +0000 (-0700)
Subject: [PATCH] sched: less newidle locking
X-Git-Tag: v2.6.14-rc1~215
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d6d5cfaf4551aa7713ca6ab73bb77e832602204b;p=pandora-kernel.git

[PATCH] sched: less newidle locking

Similarly to the earlier change in load_balance, only lock the runqueue in
load_balance_newidle if the busiest queue found has a nr_running > 1.  This
will reduce frequency of expensive remote runqueue lock aquisitions in the
schedule() path on some workloads.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

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