From: Juri Lelli <juri.lelli@arm.com>
Date: Mon, 9 Nov 2015 12:07:48 +0000 (+0000)
Subject: DEBUG: sched: add tracepoint for CPU load/util signals
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=e5a25996d3a3f46f3abee77f868b922903f5f60e;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

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

Signed-off-by: Juri Lelli <juri.lelli@arm.com>
---

diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h
index 99f3e648c197..f58760c2f712 100644
--- a/include/trace/events/sched.h
+++ b/include/trace/events/sched.h
@@ -629,6 +629,31 @@ 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 */
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 8cdb4e5592f9..b5ea9ec335d8 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -2734,6 +2734,7 @@ 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)