Synthetically generated performance test loads for operating systems
SIGME '73 Proceedings of the 1973 ACM SIGME symposium
A method for adaptive performance improvement of operating systems
SIGMETRICS '81 Proceedings of the 1981 ACM SIGMETRICS conference on Measurement and modeling of computer systems
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Recently, some work has been done in the area of dynamically adaptive scheduling in operating systems (i.e., policies that will adjust to varying workload conditions so as to maximize performance) [4],[5], [10], [11]. However, most studies deal with batch-oriented systems only. The University of British Columbia operates an IBM 370/168 running under MTS (Michigan Terminal System) which is principally used interactively. It has been known for some time that the system is Input/Output bound. The main goal of this work is to determine to what extent adeptive control, particularly as related to processor scheduling, can improve performance in a system similar to U. B. C.'s. Simulation is used throughout the study and because of this, the simulator and the workload are described in some detail. The target machine is a somewhat simplified version of the U.B.C. System.