Consider three different processors P1, P2, and P3 executing the same instruction set. P1 has a 3 GHz clock rate and a CPI of 1.5. P2 has a 2.5 GHz clock rate and a CPI of 1.0. P3 has a 4.0 GHz clock rate and has a CPI of 2.2.

******PLEASE ONLY EXPLAIN MY QUESTION*******

Hi my Question is in C)

- from where we get the execution time is 0.7 could be because we are trying to reduce time by 30%, so we get the 70% that is 0.7?

- from where is the new CPI = 1.2?

please answer only my question step by step. thanks

******PLEASE ONLY EXPLAIN MY QUESTION*******

(a) Which processor has the highest performance expressed in instructions per second? (b) If the processors each execute a program in 10 seconds, find the number of cycles and the number of instructions. (c) We are trying to reduce the execution time by 30% but this leads to an increase of 20% in the CPI. What clock rate should we have to get this time reduction? Find the answer for each processor.

my Question is in C)

- from where we get the execution time is 0.7 could be because we are trying to reduce time by 30%, so we get the 70% that is 0.7?

- from where is the new CPI = 1.2?

please answer only my question step by step. thanks