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Commit 8e45d941 authored by Patrick Bellasi's avatar Patrick Bellasi Committed by Dmitry Shmidt
Browse files

ANDROID: DEBUG: sched: add tracepoint for RD overutilized 



Signed-off-by: default avatarPatrick Bellasi <patrick.bellasi@arm.com>
Signed-off-by: default avatarAndres Oportus <andresoportus@google.com>
parent 42503db7

include/trace/events/sched.h

+20 −0
Original line number Diff line number Diff line
@@ -912,6 +912,26 @@ TRACE_EVENT(sched_tune_filter, 
		__entry->payoff, __entry->region)

);



/*

 * Tracepoint for system overutilized flag

 */

TRACE_EVENT(sched_overutilized,



	TP_PROTO(bool overutilized),



	TP_ARGS(overutilized),



	TP_STRUCT__entry(

		__field( bool,	overutilized	)

	),



	TP_fast_assign(

		__entry->overutilized	= overutilized;

	),



	TP_printk("overutilized=%d",

		__entry->overutilized ? 1 : 0)

);

#ifdef CONFIG_SCHED_WALT

struct rq;

kernel/sched/fair.c

+13 −4
Original line number Diff line number Diff line
@@ -4637,8 +4637,10 @@ enqueue_task_fair(struct rq *rq, struct task_struct *p, int flags) 
	if (!se) {

		walt_inc_cumulative_runnable_avg(rq, p);

		if (!task_new && !rq->rd->overutilized &&

		    cpu_overutilized(rq->cpu))

		    cpu_overutilized(rq->cpu)) {

			rq->rd->overutilized = true;

			trace_sched_overutilized(true);

		}



		/*

		 * We want to potentially trigger a freq switch
@@ -8190,14 +8192,19 @@ static inline void update_sd_lb_stats(struct lb_env *env, struct sd_lb_stats *sd 
			env->dst_rq->rd->overload = overload;



		/* Update over-utilization (tipping point, U >= 0) indicator */

		if (env->dst_rq->rd->overutilized != overutilized)

		if (env->dst_rq->rd->overutilized != overutilized) {

			env->dst_rq->rd->overutilized = overutilized;

			trace_sched_overutilized(overutilized);

		}

	} else {

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

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

			env->dst_rq->rd->overutilized = true;

			trace_sched_overutilized(true);

		}

	}



}



/**

 * check_asym_packing - Check to see if the group is packed into the

 *			sched doman.
@@ -9586,8 +9593,10 @@ static void task_tick_fair(struct rq *rq, struct task_struct *curr, int queued) 
		task_tick_numa(rq, curr);



#ifdef CONFIG_SMP

	if (!rq->rd->overutilized && cpu_overutilized(task_cpu(curr)))

	if (!rq->rd->overutilized && cpu_overutilized(task_cpu(curr))) {

		rq->rd->overutilized = true;

		trace_sched_overutilized(true);

	}



	rq->misfit_task = !task_fits_max(curr, rq->cpu);

#endif