Question: 3. (2 marks) Consider a system with only two types of machine language instructions AT and B, with CPIA = 4 and CP1g = 8.

3. (2 marks) Consider a system with only two types of machine language instructions AT and B, with CPIA = 4 and CP1g = 8. Suppose that through a hardware modification CPIA could be deceased to 2, without any change to CP1g, at the cost of increasing the clock cycle time by 20%. For what range of values of the fraction of executed instructions of type Al would the program execution time decrease? 4. (2 marks) Suppose that a SPEC benchmark suite contains 4 benchmarks, with running times on a system A of 1, 6, 1.5, and 60 seconds, respectively, and running times on a system B of 4, 12, 6, and 30 seconds, respectively. Which system would have a better (i.e. larger) SPEC rating, and by what factor

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