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LRUmap: Difference between revisions
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O(1)-time LRU which grows more space-efficient as the number of LRU sets increases, introduced by [[media:Cs7260final.pdf|this paper]] from [[Grad school|CS7260]], spring 2010. | O(1)-time LRU which grows more space-efficient as the number of LRU sets increases, introduced by [[media:Cs7260final.pdf|this paper]] from [[Grad school|CS7260]], spring 2010. VLHU (Volatile Least Heavily Used) is a replacement algorithm designed to allow large-scale changes in the tracked set over time, but to be resistant against a burst of new entries. These properties are desirable, for instance, when tracking entities in a network which can be temporarily overwhelmed by an attacker capable of spoofing, or tracking memory locations in a computer when non-temporal bursting traffic (say, a block of text being passed read only once by an [[online algorithm]]) is equivalent to the size of the cache. | ||
==Origin== | |||
VLHU is a data structure of, to the best of my knowledge, my creation. It is a sufficiently trivial idea that I'm sure it's been invented and discarded countless times. I first used it in the Reflex Interceptor in 2003. | |||
Source code can be found at GitHub: http://github.com/dankamongmen/lrumap. | Source code can be found at GitHub: http://github.com/dankamongmen/lrumap. | ||
[[Category: Projects]] | [[Category: Projects]] | ||
Revision as of 16:14, 10 May 2013
O(1)-time LRU which grows more space-efficient as the number of LRU sets increases, introduced by this paper from CS7260, spring 2010. VLHU (Volatile Least Heavily Used) is a replacement algorithm designed to allow large-scale changes in the tracked set over time, but to be resistant against a burst of new entries. These properties are desirable, for instance, when tracking entities in a network which can be temporarily overwhelmed by an attacker capable of spoofing, or tracking memory locations in a computer when non-temporal bursting traffic (say, a block of text being passed read only once by an online algorithm) is equivalent to the size of the cache.
Origin
VLHU is a data structure of, to the best of my knowledge, my creation. It is a sufficiently trivial idea that I'm sure it's been invented and discarded countless times. I first used it in the Reflex Interceptor in 2003.
Source code can be found at GitHub: http://github.com/dankamongmen/lrumap.
