Pipeline

Question

A 5 stage pipeline with the stages taking 2, 2, 3, 1, 2 unit of time has throughput of?

Your Answer:

0.3

Correct Answer: 0.334    Status: incorrect
 

Answer 1

CPI of ideal pipeline is 1

That means it can execute 1 instruction in one cycle

1 cycle is taking max(2,2,3,1,2) = 3 unit time

SO throughtput = $\frac{instruction}{time}=\frac{1}{3}=0.334$