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sched/debug: Add task uclamp values to SCHED_DEBUG procfs

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Requested and effective uclamp values can be a bit tricky to decipher when
playing with cgroup hierarchies. Add them to a task's procfs when
SCHED_DEBUG is enabled.

Reviewed-by: Qais Yousef <[email protected]>
Signed-off-by: Valentin Schneider <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
This commit is contained in:
Valentin Schneider authored and Ingo Molnar committed 2020-04-08 11:35:27 +02:00
1 parent 9e3bf9469c
commit 96e74ebf8d
1 file changed
+6
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kernel/sched/debug.c
+6
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@@ -946,6 +946,12 @@ void proc_sched_show_task(struct task_struct *p, struct pid_namespace *ns,
P(se.avg.last_update_time);
P(se.avg.util_est.ewma);
P(se.avg.util_est.enqueued);
#endif
#ifdef CONFIG_UCLAMP_TASK
__PS("uclamp.min", p->uclamp[UCLAMP_MIN].value);
__PS("uclamp.max", p->uclamp[UCLAMP_MAX].value);
__PS("effective uclamp.min", uclamp_eff_value(p, UCLAMP_MIN));
__PS("effective uclamp.max", uclamp_eff_value(p, UCLAMP_MAX));
#endif
P(policy);
P(prio);