diff options
| 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/sched_rt.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/sched_rt.c')
| -rw-r--r-- | kernel/sched_rt.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/kernel/sched_rt.c b/kernel/sched_rt.c index 3d4020a9ba1b..2eb4bd6a526c 100644 --- a/kernel/sched_rt.c +++ b/kernel/sched_rt.c @@ -615,6 +615,8 @@ static void update_curr_rt(struct rq *rq) curr->se.exec_start = rq->clock; cpuacct_charge(curr, delta_exec); + sched_rt_avg_update(rq, delta_exec); + if (!rt_bandwidth_enabled()) return; @@ -887,8 +889,6 @@ static void enqueue_task_rt(struct rq *rq, struct task_struct *p, int wakeup) if (!task_current(rq, p) && p->rt.nr_cpus_allowed > 1) enqueue_pushable_task(rq, p); - - inc_cpu_load(rq, p->se.load.weight); } static void dequeue_task_rt(struct rq *rq, struct task_struct *p, int sleep) @@ -899,8 +899,6 @@ static void dequeue_task_rt(struct rq *rq, struct task_struct *p, int sleep) dequeue_rt_entity(rt_se); dequeue_pushable_task(rq, p); - - dec_cpu_load(rq, p->se.load.weight); } /* |