*/ struct sched_entity *curr; struct sched_entity *next; struct sched_entity *last; struct sched_entity *skip; #ifdef CONFIG_SCHED_DEBUG unsigned int nr_spread_over; #endif #ifdef CONFIG_SMP /* * CFS load tracking */ struct sched_avg avg; #ifndef CONFIG_64BIT u64 last_update_time_c...
第一版实现:https://github.com/torvalds/linux/commit/ab84d31e15502fb626169ba2663381e34bf965b2 sched: Introduce primitives to account for CFS bandwidth tracking In this patch we introduce the notion of CFS bandwidth, partitioned into globally unassigned bandwidth, and locally claimed bandwidth. - Th...
unsignedintnr_spread_over;#endif#ifdef CONFIG_SMP/** CFS load tracking*/structsched_avg avg;//计算负载相关u64 runnable_load_sum; unsignedlongrunnable_load_avg;//基于PELT的可运行平均负载#ifdef CONFIG_FAIR_GROUP_SCHED unsignedlongtg_load_avg_contrib;//任务组的负载贡献unsignedlongpropagate_avg;#e...
* CFS load tracking */ struct sched_avg avg; u64 runnable_load_sum; unsigned long runnable_load_avg; #ifdef CONFIG_FAIR_GROUP_SCHED unsigned long tg_load_avg_contrib; #endif atomic_long_t removed_load_avg, removed_util_avg; #ifndef CONFIG_64BIT u64 load_last_update_time_copy; #endif...
Here, we address this controversy with a new 'CFS tracking' paradigm (tCFS) in which the suppressed monocular target steadily increases in contrast until breaking into awareness (as in bCFS) after which it decreases until it again disappears (reCFS), with this cycle continuing for ...
CFS完全公平调度算法 - per entity load tracking 几个重要的函数分析【转】,转自:https://blog.csdn.net/helloanthea/article/details/30081627?utm_medium=distribute.pc_relevant.none-task-blog-BlogCommendFromMachineLearnPai2-2.chann
* Per entity load average tracking. * * Put into separate cache line so it does not * collide with read-mostly values above. */struct sched_avg avg ___cacheline_aligned_in_smp;//用于调度实体的负载计算(`PELT`)#endif}; struct cfs_rq结构体的关键字段注释如下: /...
/* CFS load tracking PELT算法跟踪的该cfs_rq的平均负载和利用率 */ struct sched_avg avg; ... /* * 当一个任务退出或唤醒后迁移到其它cpu的时候,那么原本的cpu上的cfs_rq *上需要移除该任务带来的负载。由于持rq锁的问题,所以先把移除的负载记录 ...
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