1. Consider three different processors P1, P2, and P3 executing the same instruction set. P1 has a 2.0 GHz clock rate and a CPI of 1.6. P2 has a 2.6 GHz clock rate and a CPI of 1.3 P3 has a 2.8 GHz clock rate and has a CPI of 2.0. a. b. C. Determine each processor's performance expressed in instructions per second. Which processor has the highest performance and why? We are trying to reduce the execution time by 25% but this leads to an increase of 18% in the CPI. What clock rate should we have for each processor to get this time reduction