Question: Assume for a given processor the CPI of arithmetic instructions is 1, the CPI of load/store instructions is 10, and the CPI of branch instructions

Assume for a given processor the CPI of arithmetic instructions is 1, the CPI of load/store instructions is 10, and the CPI of branch instructions is 3. Assume a program has the following instruction breakdowns: 600 million arithmetic instructions, 250 million load/store instructions, 150 million branch instructions.

a) Suppose we find a way to double the performance of the arithmetic instructions. What is the overall speedup of our machine?

b) If we find a way to improve the performance of the arithmetic instrucitons by 10 times, what is the overall speeduip of our machine?

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