justify your choice of metric.

1. Discuss the different performance metrics by which we judge a computer's performance. Suppose you are a programmer and working in two settings A and B which is described below. However the two settings have something in common. We have 3 tasks T1, T2 and T3 with instruction types A, B, C and D. The CPI for A, B, C, D are 1,2,3,4 respectively. Each task has 500,000 instructions. T1 T2 T3 30% 40% 20% 20% 20% 10% 40% 20% 30% 10% 20% 40%