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/linux-6.1.9/Documentation/translations/zh_CN/scheduler/
Dsched-design-CFS.rst36 在CFS中，虚拟运行时间由每个任务的p->se.vruntime（单位为纳秒）的值表达和跟踪。因此，
39 一些细节：在“理想的”硬件上，所有的任务在任何时刻都应该具有一样的p->se.vruntime值，
42 CFS的任务选择逻辑基于p->se.vruntime的值，因此非常简单：总是试图选择p->se.vruntime值
64 CFS维护了一个按时间排序的红黑树，所有可运行任务以p->se.vruntime为键值排序。CFS从这颗
70 p->se.vruntime。一旦p->se.vruntime变得足够大，其它的任务将成为按时间排序的红黑树的
/linux-6.1.9/include/trace/events/
Dsched.h496 TP_PROTO(struct task_struct *tsk, u64 runtime, u64 vruntime),
498 TP_ARGS(tsk, __perf_count(runtime), vruntime),
504 __field( u64, vruntime )
511 __entry->vruntime = vruntime;
517 (unsigned long long)__entry->vruntime)
521 TP_PROTO(struct task_struct *tsk, u64 runtime, u64 vruntime),
522 TP_ARGS(tsk, runtime, vruntime));
/linux-6.1.9/Documentation/scheduler/
Dsched-design-CFS.rst34 p->se.vruntime (nanosec-unit) value. This way, it's possible to accurately
38 p->se.vruntime value --- i.e., tasks would execute simultaneously and no task
41 CFS's task picking logic is based on this p->se.vruntime value and it is thus
42 very simple: it always tries to run the task with the smallest p->se.vruntime
62 increasing value tracking the smallest vruntime among all tasks in the
72 p->se.vruntime key. CFS picks the "leftmost" task from this tree and sticks to it.
81 p->se.vruntime. Once p->se.vruntime gets high enough so that another task
/linux-6.1.9/kernel/sched/
Dfair.c565 static inline u64 max_vruntime(u64 max_vruntime, u64 vruntime) in max_vruntime() argument
567 s64 delta = (s64)(vruntime - max_vruntime); in max_vruntime()
569 max_vruntime = vruntime; in max_vruntime()
574 static inline u64 min_vruntime(u64 min_vruntime, u64 vruntime) in min_vruntime() argument
576 s64 delta = (s64)(vruntime - min_vruntime); in min_vruntime()
578 min_vruntime = vruntime; in min_vruntime()
586 return (s64)(a->vruntime - b->vruntime) < 0; in entity_before()
597 u64 vruntime = cfs_rq->min_vruntime; in update_min_vruntime() local
601 vruntime = curr->vruntime; in update_min_vruntime()
610 vruntime = se->vruntime; in update_min_vruntime()
[all …]
Ddebug.c462 PN(se->vruntime); in print_cfs_group_stats()
540 SPLIT_NS(p->se.vruntime), in print_task()
601 MIN_vruntime = (__pick_first_entity(cfs_rq))->vruntime; in print_cfs_rq()
604 max_vruntime = last->vruntime; in print_cfs_rq()
961 PN(se.vruntime); in proc_sched_show_task()
Dcore.c4379 p->se.vruntime = 0; in __sched_fork()
/linux-6.1.9/tools/perf/scripts/python/
Dsched-migration.py374 common_callchain, comm, pid, runtime, vruntime): argument
/linux-6.1.9/include/linux/
Dsched.h556 u64 vruntime; member
/linux-6.1.9/Documentation/timers/
Dno_hz.rst316 load, maintaining sched average, computing CFS entity vruntime,
/linux-6.1.9/Documentation/trace/
Dhistogram.rst2257 …941: sched_stat_runtime: comm=gnome-terminal- pid=1699 runtime=180706 [ns] vruntime=1126870572 [ns]
2262 … 309.874973: sched_stat_runtime: comm=rcu_sched pid=9 runtime=13646 [ns] vruntime=22531430286 [ns]
2358 …9.823113: sched_stat_runtime: comm=gnome-shell pid=1261 runtime=49347 [ns] vruntime=1835730389 [ns]
2361 …49.823118: sched_stat_runtime: comm=kworker/3:2 pid=135 runtime=5339 [ns] vruntime=17815800388 [ns]
2362 …49.823120: sched_stat_runtime: comm=kworker/6:2 pid=387 runtime=9594 [ns] vruntime=14589605367 [ns]