Consider a processor with a clock rate of 4.5 GHz and an average CPI of 2. Suppose the processor executes a program in 10 seconds. What is the number of cycles executed by this processor during the program? * 109 What is the number of instructions executed by this processor during the program? * 109

instruction executed = cycles executed / CPI = 45 x 109 / 2 = 22.5 x 109

Modification:

reduce execution time by 20 %

CPI increased by 25%

Explanation:

What is number of instructions executed by this processor during the program?

Answer:

instruction executed = cycles executed / CPI = 45 x 109 / 2 = 22.5 x 109

Modification:

reduce execution time by 20 %

CPI increased by 25%