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Commit 7defb0f8 authored by Frederic Weisbecker's avatar Frederic Weisbecker
Browse files

perf: Don't schedule out/in pinned events on task tick 



We don't need to schedule in/out pinned events on task tick,
now that pinned and flexible groups can be scheduled separately.

Signed-off-by: default avatarFrederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Arnaldo Carvalho de Melo <acme@infradead.org>
parent 5b0311e1

kernel/perf_event.c

+4 −4
Original line number Diff line number Diff line
@@ -1525,17 +1525,17 @@ void perf_event_task_tick(struct task_struct *curr) 
	if (ctx)

		perf_ctx_adjust_freq(ctx);



	cpu_ctx_sched_out(cpuctx, EVENT_ALL);

	cpu_ctx_sched_out(cpuctx, EVENT_FLEXIBLE);

	if (ctx)

		task_ctx_sched_out(ctx, EVENT_ALL);

		task_ctx_sched_out(ctx, EVENT_FLEXIBLE);



	rotate_ctx(&cpuctx->ctx);

	if (ctx)

		rotate_ctx(ctx);



	cpu_ctx_sched_in(cpuctx, EVENT_ALL);

	cpu_ctx_sched_in(cpuctx, EVENT_FLEXIBLE);

	if (ctx)

		task_ctx_sched_in(curr, EVENT_ALL);

		task_ctx_sched_in(curr, EVENT_FLEXIBLE);

}



static int event_enable_on_exec(struct perf_event *event,