combination has the highest performance and which has the lowest performance? What is the ratio of the highest performance to the lowest performance?…

Which CPU + Compiler combination has the highest performance and which has the lowest performance? What is the ratio of the highest performance to the lowest performance?

CPU P1 + Compiler C1

Clock Rate = 1.6 GHz, No of instructions = 1.2 million, Average CPI = 2.4

CPU P2 + Compiler C2

Clock Rate = 1.8 GHz , No of instructions = 1.5 million , Average CPI = 2.2

CPU P3 + Compiler C3

Clock Rate = 1.15 GHz , No of instructions = 1 million , Average CPI = 2.0        

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