diff options
| author | Joonwoo Park <joonwoop@codeaurora.org> | 2015-01-05 17:19:29 -0800 |
|---|---|---|
| committer | David Keitel <dkeitel@codeaurora.org> | 2016-03-23 20:01:31 -0700 |
| commit | f4a6c4e3279218b9212a89b710b127b76cde8c4c (patch) | |
| tree | 1a79f180642749f8ce2542b1aa7584e09d5d19c5 /kernel | |
| parent | 6939c5ae7e1e6f75a7ae80bb7a151b1e8eafc452 (diff) | |
sched: add sched feature FORCE_CPU_THROTTLING_IMMINENT
Add a new sched feature FORCE_CPU_THROTTLING_IMMINENT to perform
migration due to EA without checking frequency throttling. This option
can give us better debugging and verification capability.
Change-Id: Iba445961a7f9812528b4e3aa9c6ddf47a3aad583
[joonwoop@codeaurora.org: fixed trivial conflict in
kernel/sched/features.h]
Signed-off-by: Joonwoo Park <joonwoop@codeaurora.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/sched/fair.c | 6 | ||||
| -rw-r--r-- | kernel/sched/features.h | 1 |
2 files changed, 6 insertions, 1 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 1d69e49a6bdf..cffeceec285c 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -3828,8 +3828,12 @@ static inline int nr_big_tasks(struct rq *rq) static inline int is_cpu_throttling_imminent(int cpu) { int throttling = 0; - struct cpu_pwr_stats *per_cpu_info = get_cpu_pwr_stats(); + struct cpu_pwr_stats *per_cpu_info; + + if (sched_feat(FORCE_CPU_THROTTLING_IMMINENT)) + return 1; + per_cpu_info = get_cpu_pwr_stats(); if (per_cpu_info) throttling = per_cpu_info[cpu].throttling; return throttling; diff --git a/kernel/sched/features.h b/kernel/sched/features.h index 69631fa46c2f..fa71cb595e42 100644 --- a/kernel/sched/features.h +++ b/kernel/sched/features.h @@ -69,3 +69,4 @@ SCHED_FEAT(RT_RUNTIME_SHARE, true) SCHED_FEAT(LB_MIN, false) SCHED_FEAT(ATTACH_AGE_LOAD, true) +SCHED_FEAT(FORCE_CPU_THROTTLING_IMMINENT, false) |