Abstract
A trace-driven model is used to study the effects of various schedulers and deadlock control algorithms in a general-purpose operating system. Jobs’ requests for resources are extracted from a production load and used to drive a detailed simulation program. The simulation results show that the preemptive deadlock control algorithms give consistently good performance in terms of CPU utilization. The bankers algorithm and the detection and recovery deadlock control algorithms are susceptible to “knotting” (holding of resources by a blocked process) when there is no preemption, but their performance can be improved significantly by 1) allowing a moderate amount of preemption and 2) by forcing the job scheduler to limit the number of jobs competing for resources. When “knotting” is limited by either of the above methods, non-preemptive jobs scheduling improves CPU utilization. This paper extends and develops previous work and summarizes the interaction between some characteristics of job schedulers and deadlock control algorithms.
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© 1975 Springer-Verlag Berlin Heidelberg
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Sherman, S.W., Howard, J.H., Browne, J.C. (1975). Trace Driven Studies of Deadlock Control and Job Scheduling. In: Siefkes, D. (eds) GI-4.Jahrestagung. Lecture Notes in Computer Science, vol 26. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-40087-6_34
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DOI: https://doi.org/10.1007/978-3-662-40087-6_34
Publisher Name: Springer, Berlin, Heidelberg
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