Merge "sched: improve the scheduler" (e7c970fc) · Commits · e / devices / android_kernel_fairphone_FP3

kernel/sched/walt.c

+18 −0

Original line number	Diff line number	Diff line
		@@ -152,6 +152,8 @@ __read_mostly unsigned int sysctl_sched_cpu_high_irqload = (10 * NSEC_PER_MSEC);
		* IMPORTANT: Initialize both copies to same value!!
		*/

		static __read_mostly bool sched_predl;

		__read_mostly unsigned int sched_ravg_hist_size = 5;
		__read_mostly unsigned int sysctl_sched_ravg_hist_size = 5;

		@@ -231,6 +233,16 @@ static int __init set_sched_ravg_window(char *str)

		early_param("sched_ravg_window", set_sched_ravg_window);

		static int __init set_sched_predl(char *str)
		{
		unsigned int predl;

		get_option(&str, &predl);
		sched_predl = !!predl;
		return 0;
		}
		early_param("sched_predl", set_sched_predl);

		void inc_rq_hmp_stats(struct rq rq, struct task_struct p, int change_cra)
		{
		inc_nr_big_task(&rq->hmp_stats, p);
		@@ -1096,6 +1108,9 @@ void update_task_pred_demand(struct rq rq, struct task_struct p, int event)
		{
		u32 new, old;

		if (!sched_predl)
		return;

		if (is_idle_task(p) \|\| exiting_task(p))
		return;

		@@ -1618,6 +1633,9 @@ static inline u32 predict_and_update_buckets(struct rq *rq,
		int bidx;
		u32 pred_demand;

		if (!sched_predl)
		return 0;

		bidx = busy_to_bucket(runtime);
		pred_demand = get_pred_busy(rq, p, bidx, runtime);
		bucket_increase(p->ravg.busy_buckets, bidx);