2. Consider two different processors P1 and P2 executing the same instruction set. These instructions can be classified into four classes: A, B, C, and D. The CPI values of each class for the two processors can be given as follows: Suppose that the clock rates of P1 and P2 are 2.5GHz and 3GHz, respectively. Given a program with a dynamic instruction count of 1000000 instructions divided into classes as follows: 10% class A, 20% class B, 50% class C, and 20% class D. (c) Suppose the program is used to benchmark the performance of P2 relative to that of P1 (i.e., P1 is used as the reference). What will be the speed ratio of P2 (relative to P1)