diff options
| -rw-r--r-- | include/trace/events/sched.h | 20 | ||||
| -rw-r--r-- | kernel/sched/fair.c | 17 |
2 files changed, 33 insertions, 4 deletions
diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h index 33b1c719c9d7..8006e3a46723 100644 --- a/include/trace/events/sched.h +++ b/include/trace/events/sched.h @@ -888,6 +888,26 @@ TRACE_EVENT(sched_tune_filter, __entry->payoff, __entry->region) ); +/* + * Tracepoint for system overutilized flag + */ +TRACE_EVENT(sched_overutilized, + + TP_PROTO(bool overutilized), + + TP_ARGS(overutilized), + + TP_STRUCT__entry( + __field( bool, overutilized ) + ), + + TP_fast_assign( + __entry->overutilized = overutilized; + ), + + TP_printk("overutilized=%d", + __entry->overutilized ? 1 : 0) +); #ifdef CONFIG_SCHED_WALT struct rq; diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index e099ce747345..b84277a8530d 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -4242,8 +4242,10 @@ enqueue_task_fair(struct rq *rq, struct task_struct *p, int flags) if (!se) { walt_inc_cumulative_runnable_avg(rq, p); if (!task_new && !rq->rd->overutilized && - cpu_overutilized(rq->cpu)) + cpu_overutilized(rq->cpu)) { rq->rd->overutilized = true; + trace_sched_overutilized(true); + } /* * We want to potentially trigger a freq switch @@ -7503,12 +7505,17 @@ next_group: env->dst_rq->rd->overload = overload; /* Update over-utilization (tipping point, U >= 0) indicator */ - if (env->dst_rq->rd->overutilized != overutilized) + if (env->dst_rq->rd->overutilized != overutilized) { env->dst_rq->rd->overutilized = overutilized; + trace_sched_overutilized(overutilized); + } } else { - if (!env->dst_rq->rd->overutilized && overutilized) + if (!env->dst_rq->rd->overutilized && overutilized) { env->dst_rq->rd->overutilized = true; + trace_sched_overutilized(true); + } } + } /** @@ -8948,8 +8955,10 @@ static void task_tick_fair(struct rq *rq, struct task_struct *curr, int queued) task_tick_numa(rq, curr); #ifdef CONFIG_SMP - if (!rq->rd->overutilized && cpu_overutilized(task_cpu(curr))) + if (!rq->rd->overutilized && cpu_overutilized(task_cpu(curr))) { rq->rd->overutilized = true; + trace_sched_overutilized(true); + } rq->misfit_task = !task_fits_max(curr, rq->cpu); #endif |