given a computer running four types of instructions, named classes a through d, calculate the execution time of a program that has an instruction count per category as follows: class a: 9 millions of instructions, with an average cpi of 4.1, class b: ic of 5m and cpi of 3, class c: ic of 11m and cpi of 0.9, and class d: ic of 2m and cpi of 1. the cpu runs at 14 mhz. what is the compute time of this program in seconds

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Explanation:

Calculate the execution Time of the following :

class a: 9 millions of instructions, with an average cpi of 4.1, class b: ic of 5m and cpi of 3, class c: ic of 11m and cpi of 0.9, and class d: ic of 2m and cpi of 1. the cpu runs at 14 mhz.

Clock rate = 14 mhz

1/clock rate = 1/14,000,000Hz = 0.00000007143

Execution time = instruction count × cycle per instruction × 1/ clock rate

A) 9 millions of instructions, with an average cpi of 4.1,

Execution time = 9000000 × 4.1 × 0.00000007143 = 2.635767s

B.) ic of 5m and cpi of 3,

Execution time = 5000000 × 3 × 0.00000007143 = 1.07145 s

class c: ic of 11m and cpi of 0.9,

Execution time = 11000000 × 0.9 × 0.00000007143 = 0.707157 s

class d: ic of 2m and cpi of 1

Execution time = 2000000 × 1 × 0.00000007143 = 1.071450. 14286 s

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