[RFC PATCH v5 05/17] sched/fair: Add paravirt movements for proc sched file
From: Shrikanth Hegde <hidden>
Date: 2025-11-19 06:22:22
Also in:
lkml
Subsystem:
scheduler, the rest · Maintainers:
Ingo Molnar, Peter Zijlstra, Juri Lelli, Vincent Guittot, Linus Torvalds
Add couple of new stats. - nr_migrations_paravirt: number of migrations due to current task being moved out of paravirt CPU. - nr_wakeups_paravirt - number of wakeups where previous CPU was marked as paravirt and hence task is being woken up on current CPU. Signed-off-by: Shrikanth Hegde <redacted> --- include/linux/sched.h | 2 ++ kernel/sched/debug.c | 2 ++ 2 files changed, 4 insertions(+)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index f802bfd7120f..3628edd1468b 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h@@ -549,6 +549,7 @@ struct sched_statistics { u64 nr_failed_migrations_running; u64 nr_failed_migrations_hot; u64 nr_forced_migrations; + u64 nr_migrations_paravirt; u64 nr_wakeups; u64 nr_wakeups_sync;
@@ -557,6 +558,7 @@ struct sched_statistics { u64 nr_wakeups_remote; u64 nr_wakeups_affine; u64 nr_wakeups_affine_attempts; + u64 nr_wakeups_paravirt; #ifdef CONFIG_SCHED_CORE u64 core_forceidle_sum;
diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c
index 2cb3ffc653df..0e7d08514148 100644
--- a/kernel/sched/debug.c
+++ b/kernel/sched/debug.c@@ -1186,6 +1186,7 @@ void proc_sched_show_task(struct task_struct *p, struct pid_namespace *ns, P_SCHEDSTAT(nr_failed_migrations_running); P_SCHEDSTAT(nr_failed_migrations_hot); P_SCHEDSTAT(nr_forced_migrations); + P_SCHEDSTAT(nr_migrations_paravirt); P_SCHEDSTAT(nr_wakeups); P_SCHEDSTAT(nr_wakeups_sync); P_SCHEDSTAT(nr_wakeups_migrate);
@@ -1193,6 +1194,7 @@ void proc_sched_show_task(struct task_struct *p, struct pid_namespace *ns, P_SCHEDSTAT(nr_wakeups_remote); P_SCHEDSTAT(nr_wakeups_affine); P_SCHEDSTAT(nr_wakeups_affine_attempts); + P_SCHEDSTAT(nr_wakeups_paravirt); avg_atom = p->se.sum_exec_runtime; if (nr_switches)
--
2.47.3