This video teaches you Least Frequently Used (LFU) Page replacement algorithm using an example. It is also called as Not Frequently Used (NFU).

The difference between LFU and LRU is that LFU needs a smaller history.

It replaces the page which has the least frequency. If the frequencies are equal then it select the page using FIFO.

You can check FIFO and LRU tutorials here :
FIFO explanation : [ Ссылка ]
LRU explanation : [ Ссылка ]


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