diff options
| author | Srivatsa Vaddagiri <vatsa@codeaurora.org> | 2014-06-10 17:09:03 -0700 |
|---|---|---|
| committer | David Keitel <dkeitel@codeaurora.org> | 2016-03-23 19:59:42 -0700 |
| commit | bbc8ceab18369d9d4b8337ba9b4a4ffabf95f080 (patch) | |
| tree | 64a2eafa53e28af3c2fc284b17d842747adc3ffa | |
| parent | 9b71fb7cbbf945991337c902a6faa3349a5f7750 (diff) | |
sched: Avoid active migration of small tasks
We currently check the need to migrate the currently running task in
scheduler_tick(). Skip that check for small tasks, as its not worth
the effort!
Change-Id: Ic205cc6452f42fde6be6b85c3bf06a8542a73eba
Signed-off-by: Srivatsa Vaddagiri <vatsa@codeaurora.org>
Signed-off-by: Syed Rameez Mustafa <rameezmustafa@codeaurora.org>
| -rw-r--r-- | kernel/sched/fair.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 4e7d93e9f8b6..7b9393f80788 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -3105,6 +3105,9 @@ static inline int migration_needed(struct rq *rq, struct task_struct *p) { int nice = task_nice(p); + if (is_small_task(p)) + return 0; + /* Todo: cgroup-based control? */ if (nice > sysctl_sched_upmigrate_min_nice && rq->capacity > min_capacity) |