Background Discipline

Background Discipline

The Background discipline is mutually exclusive with the other disciplines. The Frame Scheduler only dispatches a Background process when all other processes queued to that minor frame have run and have yielded. Since the Background process cannot be sure it will run and cannot predict how much time it will have, the concepts of underrun and overrun do not apply to it.

Note: A process with the Background discipline must be queued to its frame following all non-Background processes. Do not queue a real-time process after a Background process.