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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2009-09-01 10:34:37 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-09-04 10:09:55 +0200 |
| commit | e9e9250bc78e7f6342517214c0178a529807964b (patch) | |
| tree | 9466a437ccfa93b200f4ee434fe807dd6b5fc050 /kernel/sysctl.c | |
| parent | ab29230e673c646292c90c8b9d378b9562145af0 (diff) | |
| download | lwn-e9e9250bc78e7f6342517214c0178a529807964b.tar.gz lwn-e9e9250bc78e7f6342517214c0178a529807964b.zip | |
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>
Diffstat (limited to 'kernel/sysctl.c')
| -rw-r--r-- | kernel/sysctl.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/kernel/sysctl.c b/kernel/sysctl.c index 58be76017fd0..6c9836ef4b47 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -332,6 +332,14 @@ static struct ctl_table kern_table[] = { }, { .ctl_name = CTL_UNNUMBERED, + .procname = "sched_time_avg", + .data = &sysctl_sched_time_avg, + .maxlen = sizeof(unsigned int), + .mode = 0644, + .proc_handler = &proc_dointvec, + }, + { + .ctl_name = CTL_UNNUMBERED, .procname = "timer_migration", .data = &sysctl_timer_migration, .maxlen = sizeof(unsigned int), |