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hasnain

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From: Chichawatni

Registered: 2014-10-13

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Five Stage Pipeline:

Programming Languages Quizzes Computer Architecture Organization

Question:
A CPU that runs at a frequency of 1GHz has a five-stage pipeline. In the first stage of the pipeline, instructions are fetched. A conditional branch instruction computes the target address and evaluation of the condition is done in the third stage of the pipeline. Until the outcome of the conditional branch is known the process does not fetch the new instruction. In this program out of 109 instructions 20% are instruction of conditional branching. What will be the total execution time of the program is each instruction takes one cycle to complete on average?

Option A):
1.1s
Option B):
1.3s
Option C):
1.2s
Option D):
1.0s

Correct Answer is Option C):
1.2s

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