問題詳情
13. In a 3-level memory hierarchy system, the hit time for each level is T1 = 5 ns (L1-cache) T2 = 200 ns (L2-cache) T3 = 600 ns (Main memory) The local hit rate in each level is H1 = 0.9 (L1-cache), H2 = 0.8 (L2-cache), and H3 = 1 (It isassumed that we can always find the data in main memory). If the average access time (ns) ofthis memory is K. What is the value of “{Round(K*123)} mod 5” ?
(A) 0
(B) 1
(C) 2
(D) 3
(E) 4
參考答案
用户評論
【Bryce Zoran】評論
https://www.youtube.com/watch?v=Y1esjWBTf7Q&ab_channel=PacketPrep想直接看計算跳到6:06