diff options
| -rw-r--r-- | Documentation/admin-guide/cgroup-v2.rst | 6 | ||||
| -rw-r--r-- | include/linux/sched.h | 4 | ||||
| -rw-r--r-- | include/linux/vm_event_item.h | 2 | ||||
| -rw-r--r-- | kernel/sched/core.c | 9 | ||||
| -rw-r--r-- | kernel/sched/debug.c | 4 | ||||
| -rw-r--r-- | mm/memcontrol.c | 2 | ||||
| -rw-r--r-- | mm/vmstat.c | 2 |
7 files changed, 27 insertions, 2 deletions
diff --git a/Documentation/admin-guide/cgroup-v2.rst b/Documentation/admin-guide/cgroup-v2.rst index acf855851c03..cb279c69925e 100644 --- a/Documentation/admin-guide/cgroup-v2.rst +++ b/Documentation/admin-guide/cgroup-v2.rst @@ -1697,6 +1697,12 @@ The following nested keys are defined. numa_hint_faults (npn) Number of NUMA hinting faults. + numa_task_migrated (npn) + Number of task migration by NUMA balancing. + + numa_task_swapped (npn) + Number of task swap by NUMA balancing. + pgdemote_kswapd Number of pages demoted by kswapd. diff --git a/include/linux/sched.h b/include/linux/sched.h index f96ac1982893..1c50e30b5c01 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -549,6 +549,10 @@ struct sched_statistics { u64 nr_failed_migrations_running; u64 nr_failed_migrations_hot; u64 nr_forced_migrations; +#ifdef CONFIG_NUMA_BALANCING + u64 numa_task_migrated; + u64 numa_task_swapped; +#endif u64 nr_wakeups; u64 nr_wakeups_sync; diff --git a/include/linux/vm_event_item.h b/include/linux/vm_event_item.h index 9e15a088ba38..91a3ce9a2687 100644 --- a/include/linux/vm_event_item.h +++ b/include/linux/vm_event_item.h @@ -66,6 +66,8 @@ enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT, NUMA_HINT_FAULTS, NUMA_HINT_FAULTS_LOCAL, NUMA_PAGE_MIGRATE, + NUMA_TASK_MIGRATE, + NUMA_TASK_SWAP, #endif #ifdef CONFIG_MIGRATION PGMIGRATE_SUCCESS, PGMIGRATE_FAIL, diff --git a/kernel/sched/core.c b/kernel/sched/core.c index c81cf642dba0..62b033199e9c 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -3352,6 +3352,10 @@ void set_task_cpu(struct task_struct *p, unsigned int new_cpu) #ifdef CONFIG_NUMA_BALANCING static void __migrate_swap_task(struct task_struct *p, int cpu) { + __schedstat_inc(p->stats.numa_task_swapped); + count_vm_numa_event(NUMA_TASK_SWAP); + count_memcg_event_mm(p->mm, NUMA_TASK_SWAP); + if (task_on_rq_queued(p)) { struct rq *src_rq, *dst_rq; struct rq_flags srf, drf; @@ -7953,8 +7957,9 @@ int migrate_task_to(struct task_struct *p, int target_cpu) if (!cpumask_test_cpu(target_cpu, p->cpus_ptr)) return -EINVAL; - /* TODO: This is not properly updating schedstats */ - + __schedstat_inc(p->stats.numa_task_migrated); + count_vm_numa_event(NUMA_TASK_MIGRATE); + count_memcg_event_mm(p->mm, NUMA_TASK_MIGRATE); trace_sched_move_numa(p, curr_cpu, target_cpu); return stop_one_cpu(curr_cpu, migration_cpu_stop, &arg); } diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c index 56ae54e0ce6a..f971c2af7912 100644 --- a/kernel/sched/debug.c +++ b/kernel/sched/debug.c @@ -1206,6 +1206,10 @@ 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); +#ifdef CONFIG_NUMA_BALANCING + P_SCHEDSTAT(numa_task_migrated); + P_SCHEDSTAT(numa_task_swapped); +#endif P_SCHEDSTAT(nr_wakeups); P_SCHEDSTAT(nr_wakeups_sync); P_SCHEDSTAT(nr_wakeups_migrate); diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 7e64dbf578d7..4e9771e6e340 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -474,6 +474,8 @@ static const unsigned int memcg_vm_event_stat[] = { NUMA_PAGE_MIGRATE, NUMA_PTE_UPDATES, NUMA_HINT_FAULTS, + NUMA_TASK_MIGRATE, + NUMA_TASK_SWAP, #endif }; diff --git a/mm/vmstat.c b/mm/vmstat.c index d888c248d99f..6f740f070b3d 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -1347,6 +1347,8 @@ const char * const vmstat_text[] = { "numa_hint_faults", "numa_hint_faults_local", "numa_pages_migrated", + "numa_task_migrated", + "numa_task_swapped", #endif #ifdef CONFIG_MIGRATION "pgmigrate_success", |