Consider a computer that has a 3 GHz clock rate and a CPI of 1.5.

a. What is performance expressed in instructions per second?

_____

b. If the computer execute a program in 10 seconds, what is number of cycles ?

_____ x10^9

c. What is the number of instructions executed?

_____ x10^9

d. 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?

_____ GHz (Preserve 2 digits after the dot)

Thank you!