試題詳解

3.Consider a two-level cache for a processor. LI cache and L2 cache have relative hit rates of 95% and 82% respectively. Access times of L1, L2, RAM are 1 ns, 10 ns, and 100 ns. What is the average access time in ns?
(A) 2.01
(B) 2.26
(C) 3.7
(D) 22.15
(E) 27.15