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Question 4 (Computer Performance): 10 marks Consider two different machines, with two different instruction sets, using two compilers runs a program having following distribution of instructions. Instruction Machine-A (Clock rate 250MHz) Machine-B (Clock rate 300MHz) Type Instruction Count in Instruction Count in Millions CPI Millions ARITHMETIC 8 1 7 1 LOAD 6 5 8 4 BRANCH 2. 4 2 5 STORE 4 2 3 3 (a) Determine the effective CPI, MIPS rate, and execution time for each machine. [6 marks] (b) Do MIPS ratings reflect the tive relative performances of Machines A & B, justify your answer with reference to other values and performance measures. [4 marks]