diff options
| author | Joonwoo Park <joonwoop@codeaurora.org> | 2017-01-16 18:09:20 -0800 |
|---|---|---|
| committer | Joonwoo Park <joonwoop@codeaurora.org> | 2017-09-01 17:21:06 -0700 |
| commit | 2d7da09705d6560c61676376be3ae05a5019600a (patch) | |
| tree | 1c01f0c4adfbcce5db04e178c14cf4626bd8a4de | |
| parent | ee4cebd75ed7b77132c39c0093923f9ff1bcafaa (diff) | |
sched: EAS: schedfreq: fix CPU util over estimation
WALT CPU utilization reports CPU load of all the scheduler classes.
Therefore adding RT class's load additionally will cause frequency
overshooting. Fix such issue by not accounting RT class load when
requesting capacity.
Change-Id: I29600d7af7ca8c00e0d2ff1e13872024ccaa72bf
Signed-off-by: Joonwoo Park <joonwoop@codeaurora.org>
| -rw-r--r-- | kernel/sched/cpufreq_sched.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/kernel/sched/cpufreq_sched.c b/kernel/sched/cpufreq_sched.c index f10d9f7d6d07..6ffb23adbcef 100644 --- a/kernel/sched/cpufreq_sched.c +++ b/kernel/sched/cpufreq_sched.c @@ -235,6 +235,18 @@ out: cpufreq_cpu_put(policy); } +#ifdef CONFIG_SCHED_WALT +static inline unsigned long +requested_capacity(struct sched_capacity_reqs *scr) +{ + if (!walt_disabled && sysctl_sched_use_walt_cpu_util) + return scr->cfs; + return scr->cfs + scr->rt; +} +#else +#define requested_capacity(scr) (scr->cfs + scr->rt) +#endif + void update_cpu_capacity_request(int cpu, bool request) { unsigned long new_capacity; @@ -245,7 +257,7 @@ void update_cpu_capacity_request(int cpu, bool request) scr = &per_cpu(cpu_sched_capacity_reqs, cpu); - new_capacity = scr->cfs + scr->rt; + new_capacity = requested_capacity(scr); new_capacity = new_capacity * capacity_margin / SCHED_CAPACITY_SCALE; new_capacity += scr->dl; |