Web Reference: Jul 20, 2013 · What is the difference between LRU and LFU cache implementations? I know that LRU can be implemented using LinkedHashMap. But how to implement LFU cache? Least Frequently Used (LFU) is a type of cache algorithm used to manage memory within a computer. The standard characteristics of this method involve the system keeping track of the number of times a block is referenced in memory. Apr 9, 2017 · LRU , LFU are page replacement algorithms in os . It scedules the manner in which the pages are swapped out and swapped in memory !!! "Least Frequently Used" is the best polycy for page replacement in os !!! LRU (Least recently used): the process to wich CPU will assign will be the one which is least recently used, in active processes queue.
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