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New scheduling algorithms are first evaluated using simulation. In these simulations, the workload has a huge influence on the measured performance of the simulated system. Therefore, it is customary to use workload traces recorded previously from real systems. Such open-system simulations preserve all the jobs' properties. However, preserving the jobs' arrival times actually destroys the logic of...
Evaluating the performance of a computer system requires the use of representative workloads. Therefore it is customary to use recorded job traces in simulations to evaluate the performance of proposed parallel job schedulers. We argue that this practice retains unimportant attributes of the workload, at the expense of other more important attributes. Specifically, using traces in open-system simulations...
Evaluating the performance of a computer system is based on using representative workloads. Common practice is to either use real workload traces to drive simulations or use statistical workload models that are based on such traces. Such models allow various workload attributes to be manipulated, thus providing desirable flexibility, but may lose details of the workload's internal structure. To overcome...
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