函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\sched\fair.c Create Date:2022-07-27 10:38:58
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：update_load_avg

函数原型：static inline void update_load_avg(struct cfs_rq *cfs_rq, struct sched_entity *se, int not_used1)

返回类型：void

参数：

类型参数名称
struct cfs_rq *cfs_rq
struct sched_entity *se
intnot_used1
3854  cfs_rq_util_change(cfs_rq, 0)
调用者
名称描述
enqueue_entityMIGRATION* 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
dequeue_entity
set_next_entity
put_prev_entity
entity_tick更新当前进程运行时间，并判断是否需要调度此进程
enqueue_task_fairThe 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:
dequeue_task_fairThe dequeue_task method is called before nr_running is* decreased. We remove the task from the rbtree and* update the fair scheduling stats:
detach_entity_cfs_rq
attach_entity_cfs_rq