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Commit 69852bd9 authored by Juri Lelli's avatar Juri Lelli Committed by Amit Pundir
Browse files

DEBUG: sched: add tracepoint for CPU load/util signals 



Signed-off-by: default avatarJuri Lelli <juri.lelli@arm.com>
parent c604a5fa

include/trace/events/sched.h

+25 −0
Original line number Diff line number Diff line
@@ -678,6 +678,31 @@ TRACE_EVENT(sched_load_avg_task, 
		  (u32)__entry->util_sum,

		  (u32)__entry->period_contrib)

);



/*

 * Tracepoint for accounting sched averages for cpus.

 */

TRACE_EVENT(sched_load_avg_cpu,



	TP_PROTO(int cpu, struct cfs_rq *cfs_rq),



	TP_ARGS(cpu, cfs_rq),



	TP_STRUCT__entry(

		__field( int,	cpu				)

		__field( unsigned long,	load_avg		)

		__field( unsigned long,	util_avg		)

	),



	TP_fast_assign(

		__entry->cpu			= cpu;

		__entry->load_avg		= cfs_rq->avg.load_avg;

		__entry->util_avg		= cfs_rq->avg.util_avg;

	),



	TP_printk("cpu=%d load_avg=%lu util_avg=%lu",

		  __entry->cpu, __entry->load_avg, __entry->util_avg)

);

#endif /* _TRACE_SCHED_H */



/* This part must be outside protection */

kernel/sched/fair.c

+1 −0
Original line number Diff line number Diff line
@@ -2749,6 +2749,7 @@ static inline void update_load_avg(struct sched_entity *se, int update_tg) 


	if (entity_is_task(se))

		trace_sched_load_avg_task(task_of(se), &se->avg);

	trace_sched_load_avg_cpu(cpu, cfs_rq);

}



static void attach_entity_load_avg(struct cfs_rq *cfs_rq, struct sched_entity *se)