The following commit has been merged into the sched/core branch of tip:
Commit-ID: 11b0bfa5d463b17cac5bf6b94fea4921713530c3
Gitweb: https://git.kernel.org/tip/11b0bfa5d463b17cac5bf6b94fea4921713530c3
Author: Ingo Molnar <mingo@xxxxxxxxxx>
AuthorDate: Fri, 08 Mar 2024 11:58:55 +01:00
Committer: Ingo Molnar <mingo@xxxxxxxxxx>
CommitterDate: Tue, 12 Mar 2024 11:03:40 +01:00
sched/debug: Increase SCHEDSTAT_VERSION to 16
We changed the order of definitions within 'enum cpu_idle_type',
which changed the order of [CPU_MAX_IDLE_TYPES] columns in
show_schedstat().
Suggested-by: Shrikanth Hegde <sshegde@xxxxxxxxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: "Gautham R. Shenoy" <gautham.shenoy@xxxxxxx>
Link: https://lore.kernel.org/r/20240308105901.1096078-5-mingo@xxxxxxxxxx
---
Documentation/scheduler/sched-stats.rst | 5 +++++
kernel/sched/stats.c | 2 +-
2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/Documentation/scheduler/sched-stats.rst b/Documentation/scheduler/sched-stats.rst
index 03c0629..73c4126 100644
--- a/Documentation/scheduler/sched-stats.rst
+++ b/Documentation/scheduler/sched-stats.rst
@@ -2,6 +2,11 @@
Scheduler Statistics
====================
+Version 16 of schedstats changed the order of definitions within
+'enum cpu_idle_type', which changed the order of [CPU_MAX_IDLE_TYPES]
+columns in show_schedstat(). In particular the position of CPU_IDLE
+and __CPU_NOT_IDLE changed places. The size of the array is unchanged.
+
Version 15 of schedstats dropped counters for some sched_yield:
yld_exp_empty, yld_act_empty and yld_both_empty. Otherwise, it is
identical to version 14.
diff --git a/kernel/sched/stats.c b/kernel/sched/stats.c
index 8527795..78e48f5 100644
--- a/kernel/sched/stats.c
+++ b/kernel/sched/stats.c
@@ -113,7 +113,7 @@ void __update_stats_enqueue_sleeper(struct rq *rq, struct task_struct *p,
* Bump this up when changing the output format or the meaning of an existing
* format, so that tools can adapt (or abort)
*/
-#define SCHEDSTAT_VERSION 15
+#define SCHEDSTAT_VERSION 16
static int show_schedstat(struct seq_file *seq, void *v)
{
|