Commit-ID: 8de6242cca17d9299e654e29c966d8612d397272 Gitweb: https://git.kernel.org/tip/8de6242cca17d9299e654e29c966d8612d397272 Author: Qais Yousef <[email protected]> AuthorDate: Tue, 4 Jun 2019 12:14:57 +0100 Committer: Ingo Molnar <[email protected]> CommitDate: Mon, 24 Jun 2019 19:23:42 +0200
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 <[email protected]> Signed-off-by: Peter Zijlstra (Intel) <[email protected]> Cc: Dietmar Eggemann <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Pavankumar Kondeti <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Quentin Perret <[email protected]> Cc: Sebastian Andrzej Siewior <[email protected]> Cc: Steven Rostedt <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Uwe Kleine-Konig <[email protected]> Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]> --- include/trace/events/sched.h | 4 ++++ kernel/sched/fair.c | 1 + kernel/sched/pelt.c | 2 ++ 3 files changed, 7 insertions(+) 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; }
