A program’s run time is determined by the product of instructions per program, c

Question

A program’s run time is determined by the product of instructions per program, cycles per instruction, and clock frequency. Assume the following instruction mix for a MIPS-like RISC instruction set:

15% stores, 30% loads, 20% branches, and 25% integer arithmetic, 5% integer shift, and 5% integer multiply. Given that stores require one cycle, load instructions require 3 cycles, branches require 4 cycles, integer ALU instructions require 1 cycle, and integer multiplies require 9 cycles,

1. Compute the overall CPI.

2. Suggest an improvement to lower the overall CPI. Give extensive explanation of why your suggestion will work.

Explanation / Answer

1.

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