evie/android_kernel_oneplus_msm8998
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

sched: let sched_boost take precedence over sched_restrict_cluster_spill

Browse source 
When sched_restrict_cluster_spill knob is enabled, RT tasks are restricted
to lower power cluster. This knob also restricts inter cluster no-hz kicks.
Ignore this knob setting when sched_boost is enabled so that tasks are
placed on CPUs with highest spare capacity.

CRs-Fixed: 968852
Change-Id: I01b3fc10b39dc834a733d64c2ee29c308d7ff730
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
This commit is contained in:
Pavankumar Kondeti 2016-01-29 10:06:18 +05:30 • committed by David Keitel
parent 6d742ce87b
commit 58d411413f
2 changed files with 3 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
kernel/sched/fair.c
View file

@ -10088,7 +10088,7 @@ static inline int _nohz_kick_needed_hmp(struct rq *rq, int cpu, int *type)
if (rq->nr_running < 2)
return 0;
if (!sysctl_sched_restrict_cluster_spill)
if (!sysctl_sched_restrict_cluster_spill || sched_boost())
return 1;
if (hmp_capable() && cpu_max_possible_capacity(cpu) ==

3
kernel/sched/rt.c
View file

@ -1673,7 +1673,8 @@ static int find_lowest_rq_hmp(struct task_struct *task)
int prev_cpu = task_cpu(task);
u64 cpu_load, min_load = ULLONG_MAX;
int i;
int restrict_cluster = sysctl_sched_restrict_cluster_spill;
int restrict_cluster = sched_boost() ? 0 :
sysctl_sched_restrict_cluster_spill;
/* Make sure the mask is initialized first */
if (unlikely(!lowest_mask))