diff options
| -rw-r--r-- | include/trace/events/sched.h | 29 | ||||
| -rw-r--r-- | kernel/sched/fair.c | 2 |
2 files changed, 31 insertions, 0 deletions
diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h index 9342a91f3e65..ee18c47fb7ac 100644 --- a/include/trace/events/sched.h +++ b/include/trace/events/sched.h @@ -684,6 +684,35 @@ TRACE_EVENT(sched_load_se, __entry->cpu, __get_str(path), __entry->comm, __entry->pid, __entry->load, __entry->rbl_load, __entry->util) ); + +/* + * Tracepoint for task_group load tracking: + */ +#ifdef CONFIG_FAIR_GROUP_SCHED +TRACE_EVENT(sched_load_tg, + + TP_PROTO(struct cfs_rq *cfs_rq), + + TP_ARGS(cfs_rq), + + TP_STRUCT__entry( + __field( int, cpu ) + __dynamic_array(char, path, + __trace_sched_path(cfs_rq, NULL, 0) ) + __field( long, load ) + ), + + TP_fast_assign( + __entry->cpu = cfs_rq->rq->cpu; + __trace_sched_path(cfs_rq, __get_dynamic_array(path), + __get_dynamic_array_len(path)); + __entry->load = atomic_long_read(&cfs_rq->tg->load_avg); + ), + + TP_printk("cpu=%d path=%s load=%ld", __entry->cpu, __get_str(path), + __entry->load) +); +#endif /* CONFIG_FAIR_GROUP_SCHED */ #endif /* CONFIG_SMP */ #endif /* _TRACE_SCHED_H */ diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index e17aa1efeb0a..7ef6bf8e3c98 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -3359,6 +3359,8 @@ static inline void update_tg_load_avg(struct cfs_rq *cfs_rq, int force) if (force || abs(delta) > cfs_rq->tg_load_avg_contrib / 64) { atomic_long_add(delta, &cfs_rq->tg->load_avg); cfs_rq->tg_load_avg_contrib = cfs_rq->avg.load_avg; + + trace_sched_load_tg(cfs_rq); } } |