diff options
| author | Patrick Bellasi <patrick.bellasi@arm.com> | 2016-02-10 09:24:36 +0000 |
|---|---|---|
| committer | John Stultz <john.stultz@linaro.org> | 2016-08-11 14:26:49 -0700 |
| commit | 93db70f21c7bf04dfe5bb3345400da8f97c3ad29 (patch) | |
| tree | 9d8c6041e47e6b53fbeddb55de90e0498602fdbe /kernel | |
| parent | c5a00c2dad8d161da3c2086cccd6375d8ad5b04f (diff) | |
DEBUG: sched: add tracepoint for RD overutilized
Signed-off-by: Patrick Bellasi <patrick.bellasi@arm.com>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/sched/fair.c | 17 |
1 files changed, 13 insertions, 4 deletions
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 |