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Commit a32e0660 authored by Pavankumar Kondeti's avatar Pavankumar Kondeti
Browse files

sched/fair: Improve the scheduler 



This change is for general scheduler improvement.

Change-Id: I0caae436c933656c9a7b5135c6d4a8179be06631
Signed-off-by: default avatarPavankumar Kondeti <pkondeti@codeaurora.org>
parent 5ee367fc

kernel/sched/fair.c

+2 −6
Original line number Original line Diff line number Diff line
@@ -8376,7 +8376,8 @@ int can_migrate_task(struct task_struct *p, struct lb_env *env) 
	env->flags &= ~LBF_ALL_PINNED;

	env->flags &= ~LBF_ALL_PINNED;





	if (energy_aware() && !env->dst_rq->rd->overutilized &&

	if (energy_aware() && !env->dst_rq->rd->overutilized &&

	    env->idle == CPU_NEWLY_IDLE) {

	    env->idle == CPU_NEWLY_IDLE &&

	    !task_in_related_thread_group(p)) {

		long util_cum_dst, util_cum_src;

		long util_cum_dst, util_cum_src;

		unsigned long demand;

		unsigned long demand;
@@ -9695,7 +9696,6 @@ static struct sched_group *find_busiest_group(struct lb_env *env) 




	if (energy_aware() && !env->dst_rq->rd->overutilized) {

	if (energy_aware() && !env->dst_rq->rd->overutilized) {

		int cpu_local, cpu_busiest;

		int cpu_local, cpu_busiest;

		long util_cum;

		unsigned long energy_local, energy_busiest;

		unsigned long energy_local, energy_busiest;





		if (env->idle != CPU_NEWLY_IDLE)

		if (env->idle != CPU_NEWLY_IDLE)
@@ -9715,10 +9715,6 @@ static struct sched_group *find_busiest_group(struct lb_env *env) 
		} else if (energy_local == energy_busiest) {

		} else if (energy_local == energy_busiest) {

			if (cpu_rq(cpu_busiest)->nr_running < 2)

			if (cpu_rq(cpu_busiest)->nr_running < 2)

				goto out_balanced;

				goto out_balanced;



			util_cum = cpu_util_cum(cpu_busiest, 0);

			if (util_cum < cpu_util_cum(cpu_local, 0))

				goto out_balanced;

		}

		}

	}

	}