Graduate Thesis Or Dissertation
 

The effect of both hardware and software parameters on the efficiency of a paging system

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  • Due to the present trend to utilize both virtual memory and paging for the implementation of storage for large-scale computer systems, it is of interest to analyze the pertinent parameters associated with the operation of a paging system. This paper describes the paging process and determines the effect of variations in both hardware and software parameters on the efficiency of the system. The software parameters of randomness, sequentialness, and recursiveness are introduced in the form of addressing patterns. From these patterns and a knowledge of the memory specifications of the system, an estimation of the average number of operations per page transfer is determined. The mean free path is also defined for the various addressing patterns. The hardware parameter of instruction cycle time and the auxiliary storage parameters are introduced. From these values and the mean free path, an expression for processor ratio is developed. It is the variation of this processor ratio for different values of the hardware and software parameters which determines the effectiveness of the paging process. This variation is examined, and the interaction of the parameter on the performance of the system is determined thereby rendering a more effective paging system.
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