The Essentials ofComputer(computer) 473

The Essentials ofComputer(computer) 473 - performance Keep...

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performance. Keep these ideas in mind as you read the discussions on improving performance. We begin with a discussion of the various measures of overall sys- tem performance, and then describe factors relating to the performance of indi- vidual system components. Before beginning any of these topics, however, we first introduce the necessary mathematical concepts for understanding general computer performance measurement. 10.3 MATHEMATICAL PRELIMINARIES Computer performance assessment is a quantitative science. Mathematical and statistical tools give us many ways in which to rate the overall performance of a system and the performance of its constituent components. In fact, there are so many ways to quantify system performance that selecting the correct statistic becomes a challenge in itself. In this section, we describe the most common meas- ures of “average” computer performance and then provide situations where the use of each is appropriate and inappropriate. In the second part of this section, we
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