diff options
| author | Qais Yousef | 2019-06-04 12:14:57 +0100 |
|---|---|---|
| committer | Ingo Molnar | 2019-06-24 19:23:42 +0200 |
| commit | 8de6242cca17d9299e654e29c966d8612d397272 (patch) | |
| tree | 143affeeb4eff7f3a549003fc7b1e29704a88ea7 | |
| parent | ba19f51fcb549c7ee6261da243eea55a47e98d78 (diff) | |
sched/debug: Add new tracepoint to track PELT at se level
The new tracepoint allows tracking PELT signals at sched_entity level.
Which is supported in CFS tasks and taskgroups only.
Signed-off-by: Qais Yousef <qais.yousef@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Pavankumar Kondeti <pkondeti@codeaurora.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Quentin Perret <quentin.perret@arm.com>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Uwe Kleine-Konig <u.kleine-koenig@pengutronix.de>
Link: https://lkml.kernel.org/r/20190604111459.2862-5-qais.yousef@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
| -rw-r--r-- | include/trace/events/sched.h | 4 | ||||
| -rw-r--r-- | kernel/sched/fair.c | 1 | ||||
| -rw-r--r-- | kernel/sched/pelt.c | 2 |
3 files changed, 7 insertions, 0 deletions
diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h index 520b89d384ec..c7dd9bc7f001 100644 --- a/include/trace/events/sched.h +++ b/include/trace/events/sched.h @@ -617,6 +617,10 @@ DECLARE_TRACE(pelt_irq_tp, TP_PROTO(struct rq *rq), TP_ARGS(rq)); +DECLARE_TRACE(pelt_se_tp, + TP_PROTO(struct sched_entity *se), + TP_ARGS(se)); + #endif /* _TRACE_SCHED_H */ /* This part must be outside protection */ diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index e883d7e17e36..75218ab1fa07 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -3348,6 +3348,7 @@ static inline int propagate_entity_load_avg(struct sched_entity *se) update_tg_cfs_runnable(cfs_rq, se, gcfs_rq); trace_pelt_cfs_tp(cfs_rq); + trace_pelt_se_tp(se); return 1; } diff --git a/kernel/sched/pelt.c b/kernel/sched/pelt.c index 4e961b55b5ea..a96db50d40e0 100644 --- a/kernel/sched/pelt.c +++ b/kernel/sched/pelt.c @@ -267,6 +267,7 @@ int __update_load_avg_blocked_se(u64 now, struct sched_entity *se) { if (___update_load_sum(now, &se->avg, 0, 0, 0)) { ___update_load_avg(&se->avg, se_weight(se), se_runnable(se)); + trace_pelt_se_tp(se); return 1; } @@ -280,6 +281,7 @@ int __update_load_avg_se(u64 now, struct cfs_rq *cfs_rq, struct sched_entity *se ___update_load_avg(&se->avg, se_weight(se), se_runnable(se)); cfs_se_util_change(&se->avg); + trace_pelt_se_tp(se); return 1; } |