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In this paper, Bard and Sauer describe the important contributions made by IBM researchers to the performance modeling of computer systems from the late 1960s through the early 1980s. They focus on the modeling work based on queuing networks, in which a computer system is viewed as a network of queues. The authors point to a number of previously published papers in our Journals, as described below.
The papers by K. M. Chandy, U. Herzog, and L. Woo, “Parametric analysis of queuing networks,” IBM Journal of Research and Development 19, No. 1, 36-42 (1975), and by M. Reiser and H. Kobayashi, “Queuing networks with multiple closed chains: Theory and computational algorithms,” IBM Journal of Research and Development 19, No. 3, 283-294 (1975), made significant contributions to the nascent area of exact algorithms for product-form networks. A number of papers cover tools that incorporate queuing network models. Among these, the paper by Y. Bard, “An analytic model of the VM/370 system,” IBM Journal of Research and Development 22, No. 5, 498-508 (1978), was the basis for a widely used capacity planning tool for VM/370 systems. In the area of workload characterization for simulation modeling, the paper by P. S. Cheng, “Trace-driven system modeling,” IBM Systems Journal 8, No. 4, 280-289 (1969), introduced the idea of trace-driven modeling, which significantly improved the accuracy of simulation models.
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