On modelling the performance and reliability of multimode computer systems

Authors:
V. G. Kulkarni;V. F. Nicola;K. S. Trivedi
Affiliations:
University of North Carolina, Chapel Hill, North CarolinaUSA;Duke University, Durham, North CarolinaUSA;Duke University, Durham, North CarolinaUSA
Venue:
Journal of Systems and Software
Year:
1986

Citing 6
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Abstract

We present an effective technique for the combined performance and reliability analysis of multimode computer systems. A reward rate (or a performance level) is associated with each mode of operation. The switching between different modes is characterized by a continuoustime Markov chain. Different types of service-interruption interactions (as a result of mode switching) are considered. We consider the execution time of a given job on such a system and derive the distribution of its completion time. A useful dual relationship, between the completion time of a given job and the accumulated reward up to a given time, is noted. We demonstrate the use of our technique by means of a simple example.