sched: debug, improve migration statistics

add new migration statistics when SCHED_DEBUG and SCHEDSTATS
is enabled. Available in /proc/<PID>/sched.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 18 insertions, 0 deletions

diff --git a/include/linux/sched.h b/include/linux/sched.h
index fcc9a5ada1a..3a6e05e7771 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -931,6 +931,24 @@ struct sched_entity {
         u64                     block_max;
         u64                     exec_max;
         u64                     slice_max;
+
+        u64                     nr_migrations;
+        u64                     nr_migrations_cold;
+        u64                     nr_failed_migrations_affine;
+        u64                     nr_failed_migrations_running;
+        u64                     nr_failed_migrations_hot;
+        u64                     nr_forced_migrations;
+        u64                     nr_forced2_migrations;
+
+        u64                     nr_wakeups;
+        u64                     nr_wakeups_sync;
+        u64                     nr_wakeups_migrate;
+        u64                     nr_wakeups_local;
+        u64                     nr_wakeups_remote;
+        u64                     nr_wakeups_affine;
+        u64                     nr_wakeups_affine_attempts;
+        u64                     nr_wakeups_passive;
+        u64                     nr_wakeups_idle;
 #endif
 
 #ifdef CONFIG_FAIR_GROUP_SCHED