sched: Scale down cpu_power due to RT tasks
authorPeter Zijlstra <a.p.zijlstra@chello.nl>
Tue, 1 Sep 2009 08:34:37 +0000 (10:34 +0200)
committerIngo Molnar <mingo@elte.hu>
Fri, 4 Sep 2009 08:09:55 +0000 (10:09 +0200)
commite9e9250bc78e7f6342517214c0178a529807964b
tree9466a437ccfa93b200f4ee434fe807dd6b5fc050
parentab29230e673c646292c90c8b9d378b9562145af0
sched: Scale down cpu_power due to RT tasks

Keep an average on the amount of time spend on RT tasks and use
that fraction to scale down the cpu_power for regular tasks.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Tested-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Acked-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Acked-by: Gautham R Shenoy <ego@in.ibm.com>
Cc: Balbir Singh <balbir@in.ibm.com>
LKML-Reference: <20090901083826.287778431@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
include/linux/sched.h
kernel/sched.c
kernel/sched_rt.c
kernel/sysctl.c