diff options
| author | Srivatsa Vaddagiri <vatsa@codeaurora.org> | 2014-07-30 04:51:28 -0700 |
|---|---|---|
| committer | David Keitel <dkeitel@codeaurora.org> | 2016-03-23 20:00:11 -0700 |
| commit | b9f8d63c0804a92b9991a693fd294a862b13318c (patch) | |
| tree | 498303b4787893c99f49b1faa4e65442f7a6c7db /kernel | |
| parent | 8e526b1ab439c3a013d4e27b7e0dc0fae031599d (diff) | |
sched: window-stats: update task demand on tick
A task can execute on a cpu for a long time without being preempted
or migrated. In such case, its demand can become outdated for a long
time. Prevent that from happening by updating demand of currently
running task during scheduler tick.
Change-Id: I321917b4590635c0a612560e3a1baf1e6921e792
CRs-Fixed: 698662
Signed-off-by: Srivatsa Vaddagiri <vatsa@codeaurora.org>
[joonwoop@codeaurora.org: fixed trivial merge conflict in core.c]
Signed-off-by: Joonwoo Park <joonwoop@codeaurora.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/sched/core.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index ff911672e88f..f111d1a4b32e 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -3889,6 +3889,7 @@ void scheduler_tick(void) curr->sched_class->task_tick(rq, curr, 0); update_cpu_load_active(rq); calc_global_load_tick(rq); + update_task_ravg(rq->curr, rq, TASK_UPDATE, sched_clock(), NULL); raw_spin_unlock(&rq->lock); perf_event_task_tick(); |