A. S. Noetzel
Abstract
Trace-driven modeling is a technique for optimizing a computer system by simulation studies, in which the job load data required by the simulator is taken directly from the existing system. Its advantages are 1) a full statistical representation of the job load, 2) potentially more accurate, system-independent and relevant data, and 3) the possibility of wider-ranging simulation studies without the necessity of collecting more particular data.
The variations of the trace-driven modeling technique that have occurred in practice are summarized. The above advantages of the technique and their limitations are then analyzed in the context of experience with it for the evaluation of a class of scheduling algorithms for an interactive system on the CDC 6400. Results of simulations showing the effects of interdependence of resource demand parameters are presented.
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Index Terms
- Experience with trace driven modeling
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