Function report |
Source Code:kernel\sched\fair.c |
Create Date:2022-07-28 09:38:29 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:MIGRATION* dequeue* update_curr()* update_min_vruntime()* vruntime -= min_vruntime* enqueue* update_curr()* update_min_vruntime()* vruntime += min_vruntime* this way the vruntime transition between RQs is done when both* min_vruntime are up-to-date
Proto:static void enqueue_entity(struct cfs_rq *cfs_rq, struct sched_entity *se, int flags)
Type:void
Parameter:
Type | Parameter | Name |
---|---|---|
struct cfs_rq * | cfs_rq | |
struct sched_entity * | se | |
int | flags |
3980 | renorm = Not (flags & ENQUEUE_WAKEUP) || flags & ENQUEUE_MIGRATED |
3981 | curr = 'curr' points to currently running entity on this cfs_rq.* It is set to NULL otherwise (i.e when none are currently running). == se |
3987 | If renorm && curr Then vruntime += min_vruntime |
3998 | If renorm && Not curr Then vruntime += min_vruntime |
4009 | update_load_avg(cfs_rq, se, UPDATE_TG | DO_ATTACH) |
4010 | update_cfs_group(se) |
4011 | enqueue_runnable_load_avg(cfs_rq, se) |
4012 | account_entity_enqueue(cfs_rq, se) |
4014 | If flags & ENQUEUE_WAKEUP Then place_entity(cfs_rq, se, 0) |
4017 | check_schedstat_required() |
4019 | check_spread(cfs_rq, se) |
4020 | If Not curr Then Enqueue an entity into the rb-tree: |
4022 | on_rq = 1 |
4024 | If nr_running == 1 Then |
4025 | list_add_leaf_cfs_rq(cfs_rq) |
4026 | check_enqueue_throttle(cfs_rq) |
Name | Describe |
---|---|
enqueue_task_fair | The enqueue_task method is called before nr_running is* increased. Here we update the fair scheduling stats and* then put the task into the rbtree: |
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