Question

Suppose an L1 cache has a hit time of 1 cycle and a miss penalty of 10 cycles. What is the average access time (in cycles) if your code has:a. 97% of the accesses are hits. In this case, the average access time is:______ b. 99% of the accesses are hits. In this case, the average access time is:_______ i. 1.3 cycles ii. 0.97 cycles iii. 0.99 cycles iv. 1.1 cycles

Answer 1

Answer:

a) 1.3 cycles

b) iv. 1.1 cycles.

Explanation:

a) h = 0.97

T = 1

m = 10

(1 - h = 0.03)

Tave = 0.97 + 0.03*10 = 1 - 27 = 1.3 cycles

b) Tave = 0.99 + 0.01*10

             = 1.09 cycles

Therefore, The answer is iv. 1.1 cycles.