tree 2741ff061bca597f26df340feec0a6ee58820e64
parent 67f9a619e7460b7d07284a9d0745727a77d3ade6
author Nick Piggin <nickpiggin@yahoo.com.au> 1126337176 -0700
committer Linus Torvalds <torvalds@g5.osdl.org> 1126371983 -0700

[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>