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EECS 4340 Final Review

Least Recently Used (LRU) replacement

Tag: lru-replacement

Aliases: LRU

A cache replacement policy that evicts the way in a set whose most-recent access is furthest in the past. Approximates Belady's optimal policy when temporal locality holds; exact LRU is hardware-expensive beyond 2-way and is often replaced by NMRU, tree-PLRU, or RRIP.

Lecture references