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Commit 0915c4e8 authored by Ingo Molnar's avatar Ingo Molnar
Browse files

sched: batch sleeper bonus 



batch up the sleeper bonus sum a bit more. Anything below
sched-granularity is too small to make a practical difference
anyway.

this optimization reduces the math in high-frequency scheduling
scenarios.

Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 4a2a4df7

kernel/sched_fair.c

+1 −1
Original line number Diff line number Diff line
@@ -300,7 +300,7 @@ __update_curr(struct cfs_rq *cfs_rq, struct sched_entity *curr, u64 now) 
	delta_fair = calc_delta_fair(delta_exec, lw);

	delta_mine = calc_delta_mine(delta_exec, curr->load.weight, lw);



	if (cfs_rq->sleeper_bonus > sysctl_sched_stat_granularity) {

	if (cfs_rq->sleeper_bonus > sysctl_sched_granularity) {

		delta = calc_delta_mine(cfs_rq->sleeper_bonus,

					curr->load.weight, lw);

		if (unlikely(delta > cfs_rq->sleeper_bonus))