Consider two different implementations, P1 and P2, of the same instruction set. There are five classes of instructions (A, B, C, D, and E) in the instruction set. The clock rate and CPI of each class is given below.

Assume that peak performance is defined as the fastest rate that a computer can execute any instruction sequence. What are the peak performances of P1 and P2 expressed in instructions per second?

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a. b. P1 P2 P1 P2 Clock Rate 2.0 GHz 4.0 GHz 2.0 GHz 3.0 GHz CPI Class A 1 2 1 1 CPI Class B 20 N2 CPI Class C 3 2 2 3 CPI Class D 4 4 3 4 CPI Class E 3 4 2 3