Consider three different processors P1,P2, and P3 executing the same the same C program C1. The clock rates and average CPI (number of clock cycles per instruction) for each processor is provided below. 2.1. Which processor has the best/highest performance, and what is the pairwise ratio of CPU times? (5 points) 2.2 What is the number of instructions/second (IPS) per processor (5 points)