sched: Scale down cpu_power due to RT tasks

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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>

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This commit is contained in:

Peter Zijlstra 2009-09-01 10:34:37 +02:00 • committed by Ingo Molnar

parent ab29230e67

commit e9e9250bc7

4 changed files with 72 additions and 7 deletions

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1

include/linux/sched.h

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64

kernel/sched.c

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6

kernel/sched_rt.c

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8

kernel/sysctl.c

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