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authorValentin Schneider <valentin.schneider@arm.com>2020-02-26 13:45:43 +0100
committerIngo Molnar <mingo@kernel.org>2020-04-08 11:35:27 +0200
commit96e74ebf8d594496f3dda5f8e26af6b4e161e4e9 (patch)
tree73ae636dab113ef201623fd3073dfd7c135f8c12 /kernel/sched
parentsched/debug: Factor out printing formats into common macros (diff)
downloadlinux-96e74ebf8d594496f3dda5f8e26af6b4e161e4e9.tar.xz
linux-96e74ebf8d594496f3dda5f8e26af6b4e161e4e9.zip
sched/debug: Add task uclamp values to SCHED_DEBUG procfs
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 <qais.yousef@arm.com> Signed-off-by: Valentin Schneider <valentin.schneider@arm.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lkml.kernel.org/r/20200226124543.31986-4-valentin.schneider@arm.com
Diffstat (limited to 'kernel/sched')
-rw-r--r--kernel/sched/debug.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c
index 315ef6de3cc4..a562df57a86e 100644
--- a/kernel/sched/debug.c
+++ b/kernel/sched/debug.c
@@ -947,6 +947,12 @@ void proc_sched_show_task(struct task_struct *p, struct pid_namespace *ns,
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);
if (task_has_dl_policy(p)) {