MULTIPLE CHOICE: Using several benchmark programs you have determined that most

Question

MULTIPLE CHOICE:

Using several benchmark programs you have determined that most of the time is spent executing one particular instruction. The instruction consists of four sections, A, B, C, and D. The percentage of time that the instruction spends in each section is given in the table below.

            Section                    Execution time

            A                              24 %

            B                              26 %

            C                              22 %

            D                              28 %

Which section of the instruction would you choose to improve, if you want to improve the overall performance the most?

a) section A

b) section B

c) section C

d) section D

Explanation / Answer

Ans: Section D

As given we have four sections with most of the time is spent executing one particular instruction. Among all D needs 28% is spending time for executing one particular instructioon. So by inproving section D performance we can get improve in overall performance the most.

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