TechDocs Linux Scheduler

Linux scheduler events

sched_switch (scheduler context-switch)
  prev_comm: thread_1
  prev_pid: 1154
  prev_state: TASK_RUNNING, TASK_INTERRUPTABLE, TASK_UNINTERRUPTIBLE, TASK_DEAD, etc.
  next_comm: swapper/2
  next_pid: 0

sched_wakeup / sched_wakeup_new (tracepoint called when task is actually woken)
  pid: 1144
  success: 1
  target_cpu: 4

sched_migrate_task (task migrated to new cpu)
  com: rcu_sched
  pid: 8
  orig_cpu: 1
  dest_cpu: 4

sched_process_exec (exec)
  filename: /home/mikesart/dev/amdgpu/pthreads
  pid: 1152
  old_pid: 1152

sched_process_fork (do_fork)
  parent_comm: thread_main
  parent_pid: 1152
  child_comm: thread_main
  child_pid: 1154

sched_process_exit (task exiting)
  Comm: thread_1-1154
  comm: thread_1
  pid: 1154

sched_wait_task (waiting on task to unschedule)

sched_process_wait (waiting task)