From: Patrick Bellasi <patrick.bellasi@arm.com>
Date: Wed, 24 Jun 2015 14:36:08 +0000 (+0100)
Subject: DEBUG: schedtune: add tracepoint for schedtune_tasks_update() values
X-Git-Tag: firefly_0821_release~2507^2
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=47f5ae6dc1512c991100a9691d120fbd122069c4;p=firefly-linux-kernel-4.4.55.git

DEBUG: schedtune: add tracepoint for schedtune_tasks_update() values

Signed-off-by: Patrick Bellasi <patrick.bellasi@arm.com>
---

diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h
index eb812071458b..7ec9dcfc701a 100644
--- a/include/trace/events/sched.h
+++ b/include/trace/events/sched.h
@@ -702,6 +702,68 @@ TRACE_EVENT(sched_boost_cpu,
 		  __entry->margin)
 );
 
+/*
+ * Tracepoint for schedtune_tasks_update
+ */
+TRACE_EVENT(sched_tune_tasks_update,
+
+	TP_PROTO(struct task_struct *tsk, int cpu, int tasks, int idx,
+		unsigned int boost, unsigned int max_boost),
+
+	TP_ARGS(tsk, cpu, tasks, idx, boost, max_boost),
+
+	TP_STRUCT__entry(
+		__array( char,	comm,	TASK_COMM_LEN	)
+		__field( pid_t,		pid		)
+		__field( int,		cpu		)
+		__field( int,		tasks		)
+		__field( int,		idx		)
+		__field( unsigned int,	boost		)
+		__field( unsigned int,	max_boost	)
+	),
+
+	TP_fast_assign(
+		memcpy(__entry->comm, tsk->comm, TASK_COMM_LEN);
+		__entry->pid		= tsk->pid;
+		__entry->cpu 		= cpu;
+		__entry->tasks		= tasks;
+		__entry->idx 		= idx;
+		__entry->boost		= boost;
+		__entry->max_boost	= max_boost;
+	),
+
+	TP_printk("pid=%d comm=%s "
+			"cpu=%d tasks=%d idx=%d boost=%u max_boost=%u",
+		__entry->pid, __entry->comm,
+		__entry->cpu, __entry->tasks, __entry->idx,
+		__entry->boost, __entry->max_boost)
+);
+
+/*
+ * Tracepoint for schedtune_boostgroup_update
+ */
+TRACE_EVENT(sched_tune_boostgroup_update,
+
+	TP_PROTO(int cpu, int variation, int max_boost),
+
+	TP_ARGS(cpu, variation, max_boost),
+
+	TP_STRUCT__entry(
+		__field( int,	cpu		)
+		__field( int,	variation	)
+		__field( int,	max_boost	)
+	),
+
+	TP_fast_assign(
+		__entry->cpu		= cpu;
+		__entry->variation	= variation;
+		__entry->max_boost	= max_boost;
+	),
+
+	TP_printk("cpu=%d variation=%d max_boost=%d",
+		__entry->cpu, __entry->variation, __entry->max_boost)
+);
+
 #endif /* _TRACE_SCHED_H */
 
 /* This part must be outside protection */
diff --git a/kernel/sched/tune.c b/kernel/sched/tune.c
index 3920baad104f..9d8eeb438140 100644
--- a/kernel/sched/tune.c
+++ b/kernel/sched/tune.c
@@ -264,12 +264,18 @@ schedtune_boostgroup_update(int idx, int boost)
 		/* Check if this update increase current max */
 		if (boost > cur_boost_max && bg->group[idx].tasks) {
 			bg->boost_max = boost;
+			trace_sched_tune_boostgroup_update(cpu, 1, bg->boost_max);
 			continue;
 		}
 
 		/* Check if this update has decreased current max */
-		if (cur_boost_max == old_boost && old_boost > boost)
+		if (cur_boost_max == old_boost && old_boost > boost) {
 			schedtune_cpu_update(cpu);
+			trace_sched_tune_boostgroup_update(cpu, -1, bg->boost_max);
+			continue;
+		}
+
+		trace_sched_tune_boostgroup_update(cpu, 0, bg->boost_max);
 	}
 
 	return 0;
@@ -293,6 +299,10 @@ schedtune_tasks_update(struct task_struct *p, int cpu, int idx, int task_count)
 	tasks = bg->group[idx].tasks;
 	if (tasks == 1 || tasks == 0)
 		schedtune_cpu_update(cpu);
+
+	trace_sched_tune_tasks_update(p, cpu, tasks, idx,
+			bg->group[idx].boost, bg->boost_max);
+
 }
 
 /*