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least recently used
(redirected from Cache algorithms)

    Also found in: Wikipedia 0.06 sec.
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.


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It also includes up to 2GB cache per controller, and advanced cache algorithms.
Hitachi Data Systems redefines modular storage by EDP Weekly's IT Monitor
It also includes up to 2GB cache per controller, and advanced cache algorithms.
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The system uses adaptive cache algorithms that help to decrease the cache miss rate, all of which ultimately require statistical feedback, such as most frequently-accessed documents, most frequently-requested search terms, etc.
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