diff options
| author | Srivatsa Vaddagiri <vatsa@codeaurora.org> | 2016-05-13 02:05:32 -0700 |
|---|---|---|
| committer | Pavankumar Kondeti <pkondeti@codeaurora.org> | 2016-12-16 16:50:51 +0530 |
| commit | f8c7c6ffdfb366efce72a4df93d124659a246b8c (patch) | |
| tree | c9a7d3cc5acdf1c70b68482aae03bc6bb38cc2b6 /kernel/sched/sched.h | |
| parent | 3162449f7d245d45f007d4ea3224576ddf1bcc63 (diff) | |
sched: Track burst length for tasks
Track burst length for tasks as time they ran from wakeup to sleep.
This is used to predict average time a task may run when it wakes up
and thus avoid waking up idle cpu for "short-burst" tasks.
Change-Id: Ie71d3163630fb8aa0db8ee8383768f8748270cf9
Signed-off-by: Srivatsa Vaddagiri <vatsa@codeaurora.org>
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
Diffstat (limited to 'kernel/sched/sched.h')
| -rw-r--r-- | kernel/sched/sched.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index f569c6fe3cbb..6b9f11d9a47c 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -1109,6 +1109,8 @@ extern int update_preferred_cluster(struct related_thread_group *grp, extern void set_preferred_cluster(struct related_thread_group *grp); extern void add_new_task_to_grp(struct task_struct *new); extern unsigned int update_freq_aggregate_threshold(unsigned int threshold); +extern void update_avg_burst(struct task_struct *p); +extern void update_avg(u64 *avg, u64 sample); enum sched_boost_policy { SCHED_BOOST_NONE, @@ -1647,6 +1649,8 @@ static inline int alloc_related_thread_groups(void) { return 0; } #define trace_sched_cpu_load_cgroup(...) #define trace_sched_cpu_load_wakeup(...) +static inline void update_avg_burst(struct task_struct *p) {} + #endif /* CONFIG_SCHED_HMP */ /* |