LRU ⇝
least recently used
(operating systems) (LRU) A rule used in a paging system which selects a page to be paged out if it has been used (read or written) less recently than any other page. The same rule may also be used in a cache to select which cache entry to flush. This rule is based on temporal locality - the observation that, in general, the page (or cache entry) which has not been accessed for longest is least likely to be accessed in the near future.Last updated: 1995-02-15
Nearby terms:
least fixed point ♦ least recently used ♦ least significant bit
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