Psuedo LRU tree algorithm.

Posted by patros on Stack Overflow See other posts from Stack Overflow or by patros
Published on 2010-05-03T16:22:28Z Indexed on 2010/05/03 16:28 UTC
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binary-trees

A lot of descriptions of Pseudo LRU algorithms involve using a binary search tree, and setting flags to "point away" from the node you're searching for every time you access the tree.

This leads to a reasonable approximation of LRU. However, it seems from the descriptions that all of the nodes deemed LRU would be leaf nodes. Is there a pseudo-LRU algorithm that deals with a static tree that will still perform reasonably well, while determining that non-leaf nodes are suitable LRU candidates?

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