Answer a - d please.

2 Problem 2 20 points Consider three different processors Pl, P2, and P3 executing the same instruction set with the clock rates and CPIs given in the following table. Processor Clock Rate CPI 1.8 GHz P1 P2 P3 1.5 2.3 GHz 2.3 2.8 3.1 GHz (a). Which processor has the highest performance (as defined in class)? (b). If the processors each execute a program in 15 seconds, find the number of instructions and the number of eycles for each processor (c). We are trying to reduce the current time of las by 30 but this leads to an increase of 25% in the CPI. For each processor, what clock rate should we have to achieve this time reduction? (d). Using the results above, explain why it is inappropriate to compare the performance of each processor using the Clock Rate as a lone metric. What are the three key factors that affect performance