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Commit 961c3a5f authored by Pavankumar Kondeti's avatar Pavankumar Kondeti Committed by Gerrit - the friendly Code Review server
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sched/walt: Improve the scheduler 



This change is for general scheduler improvements.

Change-Id: Ica36bb6ccd4c2d8897dab62614eadb5a060d5390
Signed-off-by: default avatarPavankumar Kondeti <pkondeti@codeaurora.org>
parent d0a6a9b7

kernel/sched/core.c

+2 −1
Original line number Diff line number Diff line
@@ -2489,7 +2489,8 @@ static void ttwu_queue(struct task_struct *p, int cpu, int wake_flags) 
	struct rq_flags rf;



#if defined(CONFIG_SMP)

	if (sched_feat(TTWU_QUEUE) && !cpus_share_cache(smp_processor_id(), cpu)) {

	if ((sched_feat(TTWU_QUEUE) && !cpus_share_cache(smp_processor_id(), cpu)) ||

			walt_want_remote_wakeup()) {

		sched_clock_cpu(cpu); /* Sync clocks across CPUs */

		ttwu_queue_remote(p, cpu, wake_flags);

		return;

kernel/sched/sched.h

+10 −0
Original line number Diff line number Diff line
@@ -2859,6 +2859,12 @@ enum sched_boost_policy { 


#ifdef CONFIG_SCHED_WALT



#define WALT_MANY_WAKEUP_DEFAULT 1000

static inline bool walt_want_remote_wakeup(void)

{

	return sysctl_sched_many_wakeup_threshold < WALT_MANY_WAKEUP_DEFAULT;

}



static inline int cluster_first_cpu(struct walt_sched_cluster *cluster)

{

	return cpumask_first(&cluster->cpus);
@@ -3268,6 +3274,10 @@ static inline bool early_detection_notify(struct rq *rq, u64 wallclock) 
}



static inline void note_task_waking(struct task_struct *p, u64 wallclock) { }

static inline bool walt_want_remote_wakeup(void)

{

	return false;

}

#endif  /* CONFIG_SCHED_WALT */



struct sched_avg_stats {