shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-08 20:07:46 +09:00
Code Issues Packages Projects Releases Wiki Activity

sched: remove call of sched_avg_update from sched_rt_avg_update

Browse Source 
rt_avg is only used to scale the available CPU's capacity for CFS
tasks.  As the update of this scaling is done during periodic load
balance, we only have to ensure that sched_avg_update has been called
before any periodic load balancing. This requirement is already
fulfilled by __update_cpu_load so the call in sched_rt_avg_update,
which is part of the hotpath, is useless.

Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Steve Muckle <smuckle@linaro.org>
This commit is contained in:
Vincent Guittot
2015-10-20 10:46:26 +02:00
committed by Amit Pundir
parent 6e4178facd
commit 39daf1cf5a
1 changed files with 0 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
kernel/sched/sched.h
View File

@@ -1578,7 +1578,6 @@ static inline void set_dl_cpu_capacity(int cpu, bool request,
static inline void sched_rt_avg_update(struct rq *rq, u64 rt_delta)
{
rq->rt_avg += rt_delta * arch_scale_freq_capacity(NULL, cpu_of(rq));
sched_avg_update(rq);
}
#else
static inline void sched_rt_avg_update(struct rq *rq, u64 rt_delta) { }