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Commit 2a699361 authored by Vikram Mulukutla's avatar Vikram Mulukutla
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sched: hmp: Reduce number of load reports in a window 



There's no use reporting load more than once in a window
via the cpufreq_update_util path (unless there's a migration).
Set the load_reported_window flag in sched_get_cpus_busy
to remove these redundant updates.

Change-Id: If43dd5abc7e0e52a8e0f0df3a20ca99ed92f5361
Signed-off-by: default avatarVikram Mulukutla <markivx@codeaurora.org>
parent 436b4a5f

kernel/sched/hmp.c

+7 −0
Original line number Diff line number Diff line
@@ -3180,6 +3180,13 @@ void sched_get_cpus_busy(struct sched_load *busy, 
		update_task_ravg(rq->curr, rq, TASK_UPDATE, sched_ktime_clock(),

				 0);



		/*

		 * Ensure that we don't report load for 'cpu' again via the

		 * cpufreq_update_util path in the window that started at

		 * rq->window_start

		 */

		rq->load_reported_window = rq->window_start;



		account_load_subtractions(rq);

		load[i] = rq->prev_runnable_sum;

		nload[i] = rq->nt_prev_runnable_sum;