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authorPatrick Bellasi <patrick.bellasi@arm.com>2015-06-24 15:36:08 +0100
committerPunit Agrawal <punit.agrawal@arm.com>2016-03-21 14:57:45 +0000
commit47f5ae6dc1512c991100a9691d120fbd122069c4 (patch)
treedf9e3fcfd41b2818c33242756e0eac7c5c7845ca
parentf9f68de79c8ed0b669dd683d41b72885fc4aef06 (diff)
downloadkernel-lsk-v4.4-eas-v5.2.tar.gz
DEBUG: schedtune: add tracepoint for schedtune_tasks_update() valueslsk-v4.4-eas-v5.2
Signed-off-by: Patrick Bellasi <patrick.bellasi@arm.com>
-rw-r--r--include/trace/events/sched.h62
-rw-r--r--kernel/sched/tune.c12
2 files changed, 73 insertions, 1 deletions
diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h
index eb81207..7ec9dcf 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 3920baa..9d8eeb4 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);
+
}
/*