Open, Closed, and Mixed Networks of Queues with Different Classes of Customers
Journal of the ACM (JACM)
Computational algorithms for closed queueing networks with exponential servers
Communications of the ACM
A combined evaluation of performance and reliability for degradable systems
SIGMETRICS '81 Proceedings of the 1981 ACM SIGMETRICS conference on Measurement and modeling of computer systems
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The increasing interest in the combined evaluation of performance and reliability of fault-tolerant computing systems requires new approaches in modelling and analysis. Based on decomposition principles allowing for the separate analysis of a system's performance and availability behavior, an algorithm for the stationary analysis of fault-tolerant queueing networks has been developed. The sample system under study is a fault-tolerant multiprocessor capable of operating on different levels of degradation. N tasks are cycling between the multiprocessor and its environment. The algorithm developed is well suited for exploring vast parameter spaces in the early design phases of degradable systems.