Validation of Closed Queueing Network Models for the DECsystem-10.
AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OHIO SCHOOL OF ENGINEERING
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A validation study was performed on Closed Queueing Network Models for the DECsystem-10 located at the Air Force Avionics Laboratory AFAL. The purpose of this study was to provide the personnel of AFAL with an understanding of the accuracy with which this class of model can predict computer performance. A previously developed Fortran program was used to implement the product form solution and the computational algorithms required for performance evaluation. A review of the solution technique is presented with a discussion of the consequences resulting from assumptions required to arrive at the closed form solution. The validation results are described for a series of experiments which investigated the accuracy of the models for several system configurations and under a variety of workloads. These results indicate that Closed Queueing Network Models are a flexible means of representing the DECsystem-10 and that the product form solution provides performance predictions which are useful for evaluation of the system. Author
- Computer Programming and Software
- Computer Hardware
- Computer Systems