IBM Systems Journal - 2002 Copyright

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IBM Journal of Research and Development  
Volume 31, Number 2, Page 300 (1992)
Network Management
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Estimating the fault rate function

by T. Jennings
Paging activity can be a major factor in determining whether a software workload will run on a given computer system. A program's paging behavior is difficult to predict because it depends not only on the workload processed by the program, but also on the level of storage contention of the processor. A program's fault rate function relates storage allocation to the page fault rate experienced while processing a given workload. Thus, with the workload defined, the fault rate function can be used to see how the program's storage allocation is affected by varying levels of storage contention, represented by varying fault rates. This paper presents a technique to represent program workloads and estimate the fault rate function, and describes how these results can be used in analyzing program performance.
Related Subjects: Performance; Programming