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試卷名稱：110年 - 110 國立中央大學_碩士班招生考試_資工類：作業系統與計算機組織#105711
年份：110年
科目：研究所、轉學考(插大)◆作業系統與計算機組織
8. Assume that the frequency of Floating Point (FP) operations is 25% for a computer, and the average CPI (Clock Cycles Per Instruction) of FP operations is 4. The average CPI of other instructions is 1.5. By performing some enhancement on the hardware, we can reduce the average CPI of all FP operations to 2. All other factors are not changed after enhancement. Which of the followings are true?
(A)The speedup for the FP operations is 2
(B) The total speedup can be computed by Amdahl's Law using the following equation: 
(C)The total speedup is 1.307
(D)The CPI after enhancement is 1.859
(E) The CPI before enhancement is 2.125