1. 结合律 交换律
结合律 (1 + 2) + 3 = 1 + (2 + 3)
交换律 (1 + 2) + 3 = (2 + 3) + 1
2. LRU-Least Recently Used 页面置换算法
A B C D E D F 物理块有4个
A
BA
CBA
DCBA
EDCB
DECB
FDEC
1. 结合律 交换律
结合律 (1 + 2) + 3 = 1 + (2 + 3)
交换律 (1 + 2) + 3 = (2 + 3) + 1
2. LRU-Least Recently Used 页面置换算法
A B C D E D F 物理块有4个
A
BA
CBA
DCBA
EDCB
DECB
FDEC