The following commit has been merged into the sched/core branch of tip: Commit-ID: 06354900787f25bf5be3c07a68e3cdbc5bf0fa69 Gitweb: https://git.kernel.org/tip/06354900787f25bf5be3c07a68e3cdbc5bf0fa69 Author: zgpeng <zgpeng.linux@xxxxxxxxx> AuthorDate: Wed, 06 Apr 2022 17:57:05 +08:00 Committer: Peter Zijlstra <peterz@xxxxxxxxxxxxx> CommitterDate: Fri, 22 Apr 2022 12:14:07 +02:00 sched/fair: Move calculate of avg_load to a better location In calculate_imbalance function, when the value of local->avg_load is greater than or equal to busiest->avg_load, the calculated sds->avg_load is not used. So this calculation can be placed in a more appropriate position. Signed-off-by: zgpeng <zgpeng@xxxxxxxxxxx> Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx> Reviewed-by: Samuel Liao <samuelliao@xxxxxxxxxxx> Reviewed-by: Vincent Guittot <vincent.guittot@xxxxxxxxxx> Link: https://lore.kernel.org/r/1649239025-10010-1-git-send-email-zgpeng@xxxxxxxxxxx --- kernel/sched/fair.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index d4bd299..601f8bd 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -9460,8 +9460,6 @@ static inline void calculate_imbalance(struct lb_env *env, struct sd_lb_stats *s local->avg_load = (local->group_load * SCHED_CAPACITY_SCALE) / local->group_capacity; - sds->avg_load = (sds->total_load * SCHED_CAPACITY_SCALE) / - sds->total_capacity; /* * If the local group is more loaded than the selected * busiest group don't try to pull any tasks. @@ -9470,6 +9468,9 @@ static inline void calculate_imbalance(struct lb_env *env, struct sd_lb_stats *s env->imbalance = 0; return; } + + sds->avg_load = (sds->total_load * SCHED_CAPACITY_SCALE) / + sds->total_capacity; } /*
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