Hello, On 25/02/26 10:51, Gabriele Monaco wrote: > Add the following tracepoints: > > * sched_dl_throttle(dl_se, cpu, type): > Called when a deadline entity is throttled > * sched_dl_replenish(dl_se, cpu, type): > Called when a deadline entity's runtime is replenished > * sched_dl_update(dl_se, cpu, type): > Called when a deadline entity updates without throttle or replenish > * sched_dl_server_start(dl_se, cpu, type): > Called when a deadline server is started > * sched_dl_server_stop(dl_se, cpu, type): > Called when a deadline server is stopped > > Those tracepoints can be useful to validate the deadline scheduler with > RV and are not exported to tracefs. > > Reviewed-by: Phil Auld <[email protected]> > Signed-off-by: Gabriele Monaco <[email protected]> > --- > > Notes: > V6: > * Add dl_se type to differentiate between fair and ext servers > * Add event to track dl_update_curr not firing other events > V3: > * Rename dl argument to dl_se in tracepoints > > include/trace/events/sched.h | 26 ++++++++++++++++++++++++++ > kernel/sched/core.c | 4 ++++ > kernel/sched/deadline.c | 25 ++++++++++++++++++++++++- > 3 files changed, 54 insertions(+), 1 deletion(-) > > diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h > index 5844147ec5fd..944d65750a64 100644 > --- a/include/trace/events/sched.h > +++ b/include/trace/events/sched.h > @@ -904,6 +904,32 @@ DECLARE_TRACE(sched_dequeue, > TP_PROTO(struct task_struct *tsk, int cpu), > TP_ARGS(tsk, cpu)); > > +#define DL_OTHER 0 > +#define DL_TASK 1 > +#define DL_SERVER_FAIR 2 > +#define DL_SERVER_EXT 3 > + > +DECLARE_TRACE(sched_dl_throttle, > + TP_PROTO(struct sched_dl_entity *dl_se, int cpu, uint8_t type), > + TP_ARGS(dl_se, cpu, type)); > + > +DECLARE_TRACE(sched_dl_replenish, > + TP_PROTO(struct sched_dl_entity *dl_se, int cpu, uint8_t type), > + TP_ARGS(dl_se, cpu, type)); > + > +/* Call to update_curr_dl_se not involving throttle or replenish */ > +DECLARE_TRACE(sched_dl_update, > + TP_PROTO(struct sched_dl_entity *dl_se, int cpu, uint8_t type), > + TP_ARGS(dl_se, cpu, type)); > + > +DECLARE_TRACE(sched_dl_server_start, > + TP_PROTO(struct sched_dl_entity *dl_se, int cpu, uint8_t type), > + TP_ARGS(dl_se, cpu, type)); > + > +DECLARE_TRACE(sched_dl_server_stop, > + TP_PROTO(struct sched_dl_entity *dl_se, int cpu, uint8_t type), > + TP_ARGS(dl_se, cpu, type)); > + > #endif /* _TRACE_SCHED_H */ > > /* This part must be outside protection */ > diff --git a/kernel/sched/core.c b/kernel/sched/core.c > index 4ca79ff58fca..b5bb2eb112bf 100644 > --- a/kernel/sched/core.c > +++ b/kernel/sched/core.c > @@ -124,6 +124,10 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(sched_exit_tp); > EXPORT_TRACEPOINT_SYMBOL_GPL(sched_set_need_resched_tp); > EXPORT_TRACEPOINT_SYMBOL_GPL(sched_enqueue_tp); > EXPORT_TRACEPOINT_SYMBOL_GPL(sched_dequeue_tp); > +EXPORT_TRACEPOINT_SYMBOL_GPL(sched_dl_throttle_tp); > +EXPORT_TRACEPOINT_SYMBOL_GPL(sched_dl_replenish_tp); > +EXPORT_TRACEPOINT_SYMBOL_GPL(sched_dl_server_start_tp); > +EXPORT_TRACEPOINT_SYMBOL_GPL(sched_dl_server_stop_tp);
Don't we need to export sched_dl_update_tp as well? > DEFINE_PER_CPU_SHARED_ALIGNED(struct rq, runqueues); > DEFINE_PER_CPU(struct rnd_state, sched_rnd_state); ... > @@ -1532,7 +1551,8 @@ static void update_curr_dl_se(struct rq *rq, struct > sched_dl_entity *dl_se, s64 > > if (!is_leftmost(dl_se, &rq->dl)) > resched_curr(rq); > - } > + } else > + trace_sched_dl_update_tp(dl_se, cpu_of(rq), dl_get_type(dl_se, > rq)); This wants braces even if it's a single statement. > > /* > * The dl_server does not account for real-time workload because it Thanks, Juri
