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| author | Ingo Molnar <mingo@kernel.org> | 2024-03-08 11:58:55 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2024-03-12 11:03:40 +0100 |
| commit | 11b0bfa5d463b17cac5bf6b94fea4921713530c3 (patch) | |
| tree | 3a739c527cb7db70e2f22b06aabe84b9fe0ba9cc | |
| parent | 38d707c54df4ca58cd9ceae2ddcbd6f606b99e9f (diff) | |
| download | lwn-11b0bfa5d463b17cac5bf6b94fea4921713530c3.tar.gz lwn-11b0bfa5d463b17cac5bf6b94fea4921713530c3.zip | |
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@linux.ibm.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: "Gautham R. Shenoy" <gautham.shenoy@amd.com>
Link: https://lore.kernel.org/r/20240308105901.1096078-5-mingo@kernel.org
| -rw-r--r-- | Documentation/scheduler/sched-stats.rst | 5 | ||||
| -rw-r--r-- | kernel/sched/stats.c | 2 |
2 files changed, 6 insertions, 1 deletions
diff --git a/Documentation/scheduler/sched-stats.rst b/Documentation/scheduler/sched-stats.rst index 03c062915998..73c412666655 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 85277953cc72..78e48f5426ee 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) { |