Problem 1- Assume a CPU has the following instruction mix and CPI Instruction Arithmetic Load/Store Conditional Multiply/Division % of instructions 50 25 15 2 3 12 I 10 The clock rate is 2GHz. You have received 2 competing proposals to improve performance 1. To have a special multiply/division unit that performs multiplication and division in 2 cy 2. To increase the clock to 3GHz, that will increase load/store by one cycle and the muli Which of these 2 proposals is better (or none of them, the current one is better)? Justify your cles. You need to reduce the clock rate to 1.7GHz. ply and division by 2 cycles