diff options
| -rw-r--r-- | kernel/sched/debug.c | 4 | ||||
| -rw-r--r-- | kernel/sched/fair.c | 22 | ||||
| -rw-r--r-- | kernel/sched/sched.h | 4 |
3 files changed, 30 insertions, 0 deletions
diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c index 2d2e2b3c1be..290892361a0 100644 --- a/kernel/sched/debug.c +++ b/kernel/sched/debug.c @@ -230,6 +230,10 @@ void print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq) cfs_rq->runnable_load_avg); SEQ_printf(m, " .%-30s: %lld\n", "blocked_load_avg", cfs_rq->blocked_load_avg); + SEQ_printf(m, " .%-30s: %ld\n", "tg_load_avg", + atomic64_read(&cfs_rq->tg->load_avg)); + SEQ_printf(m, " .%-30s: %lld\n", "tg_load_contrib", + cfs_rq->tg_load_contrib); #endif print_cfs_group_stats(m, cpu, cfs_rq->tg); diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 74dc29ba1ad..db788222f19 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -1102,6 +1102,26 @@ static inline u64 __synchronize_entity_decay(struct sched_entity *se) return decays; } +#ifdef CONFIG_FAIR_GROUP_SCHED +static inline void __update_cfs_rq_tg_load_contrib(struct cfs_rq *cfs_rq, + int force_update) +{ + struct task_group *tg = cfs_rq->tg; + s64 tg_contrib; + + tg_contrib = cfs_rq->runnable_load_avg + cfs_rq->blocked_load_avg; + tg_contrib -= cfs_rq->tg_load_contrib; + + if (force_update || abs64(tg_contrib) > cfs_rq->tg_load_contrib / 8) { + atomic64_add(tg_contrib, &tg->load_avg); + cfs_rq->tg_load_contrib += tg_contrib; + } +} +#else +static inline void __update_cfs_rq_tg_load_contrib(struct cfs_rq *cfs_rq, + int force_update) {} +#endif + /* Compute the current contribution to load_avg by se, return any delta */ static long __update_entity_load_avg_contrib(struct sched_entity *se) { @@ -1172,6 +1192,8 @@ static void update_cfs_rq_blocked_load(struct cfs_rq *cfs_rq, int force_update) atomic64_add(decays, &cfs_rq->decay_counter); cfs_rq->last_decay = now; } + + __update_cfs_rq_tg_load_contrib(cfs_rq, force_update); } static inline void update_rq_runnable_avg(struct rq *rq, int runnable) diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index 30236ab4edc..924a9909488 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -112,6 +112,7 @@ struct task_group { unsigned long shares; atomic_t load_weight; + atomic64_t load_avg; #endif #ifdef CONFIG_RT_GROUP_SCHED @@ -232,6 +233,9 @@ struct cfs_rq { u64 runnable_load_avg, blocked_load_avg; atomic64_t decay_counter, removed_load; u64 last_decay; +#ifdef CONFIG_FAIR_GROUP_SCHED + u64 tg_load_contrib; +#endif #endif #ifdef CONFIG_FAIR_GROUP_SCHED struct rq *rq; /* cpu runqueue to which this cfs_rq is attached */ |