]> git.karo-electronics.de Git - karo-tx-linux.git/commit
sched/fair: Let minimally loaded cpu balance the group
authorPeter Zijlstra <a.p.zijlstra@chello.nl>
Fri, 20 Apr 2012 14:57:22 +0000 (16:57 +0200)
committerIngo Molnar <mingo@kernel.org>
Wed, 9 May 2012 13:00:51 +0000 (15:00 +0200)
commitc22402a2f76e88b04b7a8b6c0597ad9ba6fd71de
treedba3b3dc85c1290310968ce78d36ccb9fd670366
parentc82513e513556a04f81aa511cd890acd23349c48
sched/fair: Let minimally loaded cpu balance the group

Currently we let the leftmost (or first idle) cpu ascend the
sched_domain tree and perform load-balancing. The result is that the
busiest cpu in the group might be performing this function and pull
more load to itself. The next load balance pass will then try to
equalize this again.

Change this to pick the least loaded cpu to perform higher domain
balancing.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-v8zlrmgmkne3bkcy9dej1fvm@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
kernel/sched/fair.c