Hi Alex, >>> diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c >>> index 81fa536..cae5134 100644 >>> --- a/kernel/sched/fair.c >>> +++ b/kernel/sched/fair.c >>> @@ -1509,6 +1509,10 @@ static inline void enqueue_entity_load_avg(struct >>> cfs_rq *cfs_rq, >>> * We track migrations using entity decay_count <= 0, on a wake-up >>> * migration we use a negative decay count to track the remote decays >>> * accumulated while sleeping. >>> + * >>> + * When enqueue a new forked task, the se->avg.decay_count == 0, so >>> + * we bypass update_entity_load_avg(), use avg.load_avg_contrib initial >>> + * value: se->load.weight. >> >> I disagree with the comment.update_entity_load_avg() gets called for all >> forked tasks. >> enqueue_task_fair->update_entity_load_avg() during the second >> iteration.But __update_entity_load_avg() in update_entity_load_avg() >> > > When goes 'enqueue_task_fair->update_entity_load_avg()' during the > second iteration. the se is changed. > That is different se. > > Correct Alex,sorry I overlooked this.
Regards Preeti U Murthy -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
