Modeling and simulation of a parallel operating system: processorsharing example

摘要

We consider the sharing of processors in parallel computersystems. In general, the main goal of the systems, better performance,decreases processor utilization. We model and simulate a multi-taskingparallel operating system, and estimate its performance degradation andoverall system throughout in the case where threads share a processor.We formalize the system by using DEVS (Discrete Event SystemSpecification), and implement it in the DEVS simulation environment.Simulation results show that the processor sharing between threads isacceptable in the sense of TPP (throughput per processor)