Process management and resource sharing in the multiaccess system in ESOPE
Communications of the ACM
Dynamic space-sharing in computer systems
Communications of the ACM
Synthetically generated performance test loads for operating systems
SIGME '73 Proceedings of the 1973 ACM SIGME symposium
An approach to interactive performance analysis in a busy production system (NOS/BE)
ACM SIGMETRICS Performance Evaluation Review
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We describe a simulator of interactive users designed for the resource sharing system ESOPE. We stress the guide-lines of the design as well as the problems of interface with the operating system, of measurements, and of perturbations caused by the simulator in the statistics gathered.We show two examples of an application of the simulator to the design of a resource-sharing system, viz., to an anlysis of load regulation policies, and to an evaluation of the improvement in system performance one may expect from implementing shared translators.Finally, we use the load simulator to validate a mathematical model. The latter is developped by step-wise refinement, using measured values of model parameters, till a good agreement between the performance indices computed from our model and those measured in a real system under simulated load, is obtained. It is observed that, for most of the performance measures considered, a simple model matches fairly well the "real world".