A least frequently used (LFU) policy will replace the line that has been referenced the fewest times over some past time window. A least recently used (LRU) policy will replace the line that was last accessed the furthest in the past.
A least frequently used (LFU) policy will replace the line that has been referenced the fewest times over some past time window. A least recently used (LRU) policy will replace the line that was last accessed the furthest in the past.