diff options
| author | Vincent Guittot <vincent.guittot@linaro.org> | 2021-02-24 16:30:05 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2021-03-06 14:40:21 +0300 |
| commit | 6553fc18179113a11835d5fde1735259f8943a55 (patch) | |
| tree | 2657574978e98ae3b4d6cdebb0c870a7dd4cf020 /kernel/sched | |
| parent | 7a82e5f52a3506bc35a4dc04d53ad2c9daf82e7f (diff) | |
| download | linux-6553fc18179113a11835d5fde1735259f8943a55.tar.xz | |
sched/fair: Reorder newidle_balance pulled_task tests
Reorder the tests and skip useless ones when no load balance has been
performed and rq lock has not been released.
Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Valentin Schneider <valentin.schneider@arm.com>
Link: https://lkml.kernel.org/r/20210224133007.28644-6-vincent.guittot@linaro.org
Diffstat (limited to 'kernel/sched')
| -rw-r--r-- | kernel/sched/fair.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 3c00918f158f..356a2456c5e9 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -10584,7 +10584,6 @@ static int newidle_balance(struct rq *this_rq, struct rq_flags *rf) if (curr_cost > this_rq->max_idle_balance_cost) this_rq->max_idle_balance_cost = curr_cost; -out: /* * While browsing the domains, we released the rq lock, a task could * have been enqueued in the meantime. Since we're not going idle, @@ -10593,14 +10592,15 @@ out: if (this_rq->cfs.h_nr_running && !pulled_task) pulled_task = 1; - /* Move the next balance forward */ - if (time_after(this_rq->next_balance, next_balance)) - this_rq->next_balance = next_balance; - /* Is there a task of a high priority class? */ if (this_rq->nr_running != this_rq->cfs.h_nr_running) pulled_task = -1; +out: + /* Move the next balance forward */ + if (time_after(this_rq->next_balance, next_balance)) + this_rq->next_balance = next_balance; + if (pulled_task) this_rq->idle_stamp = 0; else |