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sched/debug: Add new tracepoint to track cpu_capacity

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rq->cpu_capacity is a key element in several scheduler parts, such as EAS
task placement and load balancing. Tracking this value enables testing
and/or debugging by a toolkit.

Signed-off-by: Vincent Donnefort <vincent.donnefort@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/1598605249-72651-1-git-send-email-vincent.donnefort@arm.com
This commit is contained in:
Vincent Donnefort
2020-08-28 10:00:49 +01:00
committed by Peter Zijlstra
parent 9abb897345
commit 51cf18c90c
4 changed files with 20 additions and 0 deletions
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4
include/trace/events/sched.h
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@@ -630,6 +630,10 @@ DECLARE_TRACE(pelt_se_tp,
TP_PROTO(struct sched_entity *se),
TP_ARGS(se));
DECLARE_TRACE(sched_cpu_capacity_tp,
TP_PROTO(struct rq *rq),
TP_ARGS(rq));
DECLARE_TRACE(sched_overutilized_tp,
TP_PROTO(struct root_domain *rd, bool overutilized),
TP_ARGS(rd, overutilized));