sched: simplify bonus calculation #2 (ea0aa3b2) · Commits · 戴 / test

current code: delta = calc_delta_mine(delta_exec, curr->load.weight, lw); delta = min((u64)delta, cfs_rq->sleeper_bonus); Notice that this calc_delta_mine() line is exactly delta_mine, which gives: delta = min((u64)delta_mine, cfs_rq->sleeper_bonus); Signed-off-by:

Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by:

Ingo Molnar <mingo@elte.hu>

kernel/sched_fair.c

+1 −2

Original line number	Diff line number	Diff line
		@@ -303,8 +303,7 @@ __update_curr(struct cfs_rq cfs_rq, struct sched_entity curr)
		delta_mine = calc_delta_mine(delta_exec, curr->load.weight, lw);

		if (cfs_rq->sleeper_bonus > sysctl_sched_granularity) {
		delta = calc_delta_mine(delta_exec, curr->load.weight, lw);
		delta = min((u64)delta, cfs_rq->sleeper_bonus);
		delta = min((u64)delta_mine, cfs_rq->sleeper_bonus);
		delta = min(delta, (unsigned long)(
		(long)sysctl_sched_runtime_limit - curr->wait_runtime));
		cfs_rq->sleeper_bonus -= delta;

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