grub_reclaim

函数名称：This function implements the GRUB accounting rule:* according to the GRUB reclaiming algorithm, the runtime is* not decreased as "dq = -dt", but as* "dq = -max{u / Umax, (1 - Uinact - Uextra)} dt",* where u is the utilization of the task, Umax is the

函数原型：static u64 grub_reclaim(u64 delta, struct rq *rq, struct sched_dl_entity *dl_se)

返回类型：u64

参数：

类型	参数	名称
u64	delta
struct rq *	rq
struct sched_dl_entity *	dl_se

1155

u_inact等于Utilization of the tasks "assigned" to this runqueue (including* the tasks that are in runqueue and the tasks that executed on this* CPU and blocked)减"Active utilization" for this runqueue: increased when a* task wakes up (becomes TASK_RUNNING) and decreased when a* task blocks

1157

u_act_min等于 dl_runtime / dl_period 乘Inverse of the fraction of CPU utilization that can be reclaimed* by the GRUB algorithm.右移RATIO_SHIFT位

1167

如果u_inact加extra_bw大于BW_UNIT减u_act_min则u_act等于u_act_min

1169

否则u_act等于BW_UNIT减u_inact减extra_bw

1172

返回:delta乘u_act右移BW_SHIFT位

**调用者**
名称	描述
update_curr_dl	Update the current task's runtime statistics (provided it is still* a -deadline task and has not been removed from the dl_rq).

源代码转换工具开放的插件接口	X
支持：c/c++/esqlc/java Oracle/Informix/Mysql 插件可实现：逻辑报告代码生成和批量转换代码

函数逻辑报告