[Patch v4 4/6] sched/fair: update cpu_capcity to reflect thermal pressure

Thara Gopinath
2019-10-22T20:34:39Z

cpu_capacity relflects the maximum available capacity of a cpu. Thermal
pressure on a cpu means this maximum available capacity is reduced. This
patch reduces the average thermal pressure for a cpu from its maximum
available capacity so that cpu_capacity reflects the actual
available capacity.

Signed-off-by: Thara Gopinath <thara.gopinath@linaro.org>
---
kernel/sched/fair.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 4f9c2cb..be3e802 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -7727,6 +7727,7 @@ static unsigned long scale_rt_capacity(struct sched_domain *sd, int cpu)

used = READ_ONCE(rq->avg_rt.util_avg);
used += READ_ONCE(rq->avg_dl.util_avg);
+ used += READ_ONCE(rq->avg_thermal.load_avg);

if (unlikely(used >= max))
return 1;
--
2.1.4