Project Overview:
Scheduling Algorithms for Dependability


Rate-monotonic scheduling (RTS) is becoming a viable scheduling discipline for real-time systems. With its ease of implementation and and its optimality, RTS is a powerful vehicle in guaranteeing deadlines in hard real-time environments. However, it can only do so as long as no processors fail or processes never produce erroneous results. Unfortunately, processors fail in reality, and tasks do produce erroneous results, especially in a large complex system. In order to support dependability of real-time systems, we study the problem of guaranteeing hard deadlines even in the presence of processor failures and/or process errors.



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Last modified: Mon Oct 2 18:34:05 EDT 1995 [SK]