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| '''Relative Performance''' {{{ Execution Time of Y 1/Performance Y Performance X If X is n times faster than Y, n = --------------------- = ----------------- = --------------- Execution Time of X 1/Performance X Performance Y }}} See ThroughPut, ResponseTime  | 
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Subect: Architecture-Performance
Performance is a subjective quatity that is often argued about by those who are affected by it. However we can make a general statement about performance:
performance = 1 / (running time)
The more general problem comes when we start agregating different performance metrics. Say we run 5 different programs and measure their running time. How do we agregate them? We can use a weighted average or a straight sum average.
Relative Performance
                                    Execution Time of Y     1/Performance Y     Performance X
If X is n times faster than Y, n = --------------------- = ----------------- = ---------------
                                    Execution Time of X     1/Performance X     Performance YSee ThroughPut, ResponseTime
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