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authorChristian Loehle <christian.loehle@arm.com>2025-01-29 17:59:44 +0000
committerIngo Molnar <mingo@kernel.org>2025-01-31 10:45:33 +0100
commit9065ce69754dece78606c8bbb3821449272e56bf (patch)
treece7a208d956905dcb17664878a95750185e7b759 /kernel
parent3429dd57f0deb1a602c2624a1dd7c4c11b6c4734 (diff)
sched/debug: Provide slice length for fair tasks
Since commit: 857b158dc5e8 ("sched/eevdf: Use sched_attr::sched_runtime to set request/slice suggestion") ... we have the userspace per-task tunable slice length, which is a key parameter that is otherwise difficult to obtain, so provide it in /proc/$PID/sched. [ mingo: Clarified the changelog. ] Signed-off-by: Christian Loehle <christian.loehle@arm.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/453349b1-1637-42f5-a7b2-2385392b5956@arm.com
Diffstat (limited to 'kernel')
-rw-r--r--kernel/sched/debug.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c
index a1be00a988bf..5b32d3cc393b 100644
--- a/kernel/sched/debug.c
+++ b/kernel/sched/debug.c
@@ -1265,6 +1265,8 @@ void proc_sched_show_task(struct task_struct *p, struct pid_namespace *ns,
if (task_has_dl_policy(p)) {
P(dl.runtime);
P(dl.deadline);
+ } else if (fair_policy(p->policy)) {
+ P(se.slice);
}
#ifdef CONFIG_SCHED_CLASS_EXT
__PS("ext.enabled", task_on_scx(p));