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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2009-09-01 04:34:37 -0400
committerIngo Molnar <mingo@elte.hu>2009-09-04 04:09:55 -0400
commite9e9250bc78e7f6342517214c0178a529807964b (patch)
tree9466a437ccfa93b200f4ee434fe807dd6b5fc050 /include/linux/sched.h
parentab29230e673c646292c90c8b9d378b9562145af0 (diff)
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 'include/linux/sched.h')
-rw-r--r--include/linux/sched.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 9c81c921acb3..c67ddf309c84 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1831,6 +1831,7 @@ extern unsigned int sysctl_sched_child_runs_first;
1831extern unsigned int sysctl_sched_features; 1831extern unsigned int sysctl_sched_features;
1832extern unsigned int sysctl_sched_migration_cost; 1832extern unsigned int sysctl_sched_migration_cost;
1833extern unsigned int sysctl_sched_nr_migrate; 1833extern unsigned int sysctl_sched_nr_migrate;
1834extern unsigned int sysctl_sched_time_avg;
1834extern unsigned int sysctl_timer_migration; 1835extern unsigned int sysctl_timer_migration;
1835 1836
1836int sched_nr_latency_handler(struct ctl_table *table, int write, 1837int sched_nr_latency_handler(struct ctl_table *table, int write,