Module #2 Homework
Question #1 (15pts)
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
Which processor has the highest performance expressed in instructions per
If the processors each execute a program in 10 seconds, find the number of
cycles and the number of instructions.
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?