[CSE]  Advanced Operating Systems 
  COMP9242 2002/S2  		UNSW
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Next: Issues Up: 10-smp Previous: Schedulability

Sporadic (Non-Periodic) Processes

Use minimum (or average) inter-arrival interval for \(T_i\).
  • Generally \(D_i \ll T_i\) for these.
  • \(T_i\) may be irrelevant.
  • Use \(D_i\) rather than \(T_i\) for priority assignment:
    • Deadline-monotonic priority ordering (DMPO).

Note:
 soft  
  hard  
real-time guarantees
 average  
  minimal  
inter-arrival times.

See e.g.,[BW96] for more.


Gernot Heiser 2002-10-11