Safety-critical realtime with Linux

Posted Sep 28, 2017 15:40 UTC (Thu) by farnz (subscriber, #17727)
In reply to: Safety-critical realtime with Linux by alvieboy
Parent article: Safety-critical realtime with Linux

That definition makes audio playback (traditionally seen as a soft real time task) into a hard real time task; if the jitter is high, playback fails (the audio is unlistenable).

This is why computer science textbooks tend to distinguish based on the effect of a missed deadline; miss a hard deadline, and the task will not recover without external intervention, while missing a soft deadline can be recovered from by meeting a later deadline.