diff options
author | Morten Rasmussen <morten.rasmussen@arm.com> | 2014-09-05 11:30:29 +0100 |
---|---|---|
committer | Vincent Guittot <vincent.guittot@linaro.org> | 2014-11-20 09:38:03 +0100 |
commit | 84ca9a71fa8a56519e7bc1d930031096d14b6e06 (patch) | |
tree | 6fc7732953b8559242e9821fccecf542f056733c /kernel/sched/fair.c | |
parent | 7b6d9d9be04d14c2483c30fab92d4fc0f95d7417 (diff) |
sched: Track group sched_entity usage contributions
Adds usage contribution tracking for group entities. Unlike
se->avg.load_avg_contrib, se->avg.utilization_avg_contrib for group
entities is the sum of se->avg.utilization_avg_contrib for all entities on the
group runqueue. It is _not_ influenced in any way by the task group
h_load. Hence it is representing the actual cpu usage of the group, not
its intended load contribution which may differ significantly from the
utilization on lightly utilized systems.
cc: Paul Turner <pjt@google.com>
cc: Ben Segall <bsegall@google.com>
Signed-off-by: Morten Rasmussen <morten.rasmussen@arm.com>
Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
Diffstat (limited to 'kernel/sched/fair.c')
-rw-r--r-- | kernel/sched/fair.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index e9f5cb027e65..b509b082c61c 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -2735,6 +2735,9 @@ static long __update_entity_utilization_avg_contrib(struct sched_entity *se) if (entity_is_task(se)) __update_task_entity_utilization(se); + else + se->avg.utilization_avg_contrib = + group_cfs_rq(se)->utilization_load_avg; return se->avg.utilization_avg_contrib - old_contrib; } |