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arXiv 1704.04849cs.PF
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广义LRU-MRU内容缓存的平稳分布

Stationary Distribution of a Generalized LRU-MRU Content Cache

George Kesidis

摘要:

以前已经提出了许多不同的高速缓存机制,探索不同的插入和驱逐政策及其性能单独和作为高速缓存网络的一部分。我们得到了一个新的封闭形式的平稳不变分布的LRU和MRU缓存节点下的参考马尔可夫模型的泛化。数值比较与“增量排名进展”(IRP a.k.a. CLIMB)和随机驱逐(a.k.a.随机替换)方法。与LRU相比,MRU下的缓存命中概率范围较小,IRP下的缓存命中概率范围较大。最后,我们得出了一个特殊情况下的随机驱逐缓存树网络和相关的讨论的不变分布。

英文摘要:

Many different caching mechanisms have been previously proposed, exploring different insertion and eviction policies and their performance individually and as part of caching networks. We obtain a novel closed-form stationary invariant distribution for a generalization of LRU and MRU caching nodes under a reference Markov model. Numerical comparisons are made with an "Incremental Rank Progress" (IRP a.k.a. CLIMB) and random eviction (a.k.a. random replacement) methods under a steady-state Zipf popularity distribution. The range of cache hit probabilities is smaller under MRU and larger under IRP compared to LRU. We conclude with the invariant distribution for a special case of a random-eviction caching tree-network and associated discussion.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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