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Design and Evaluation of a Proxy Cache for Peer-to-Peer Traffic

机译:对等流量代理缓存的设计和评估

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Peer-to-peer (P2P) systems generate a major fraction of the current Internet traffic, and they significantly increase the load on ISP networks and the cost of running and connecting customer networks (e.g., universities and companies) to the Internet. To mitigate these negative impacts, many previous works in the literature have proposed caching of P2P traffic, but very few (if any) have considered designing a caching system to actually do it. This paper demonstrates that caching P2P traffic is more complex than caching other Internet traffic, and it needs several new algorithms and storage systems. Then, the paper presents the design and evaluation of a complete, running, proxy cache for P2P traffic, called pCache. pCache transparently intercepts and serves traffic from different P2P systems. A new storage system is proposed and implemented in pCache. This storage system is optimized for storing P2P traffic, and it is shown to outperform other storage systems. In addition, a new algorithm to infer the information required to store and serve P2P traffic by the cache is proposed. Furthermore, extensive experiments to evaluate all aspects of pCache using actual implementation and real P2P traffic are presented.
机译:对等(P2P)系统产生了当前Internet流量的很大一部分,它们显着增加了ISP网络的负载以及运行和将客户网络(例如大学和公司)连接到Internet的成本。为了减轻这些负面影响,文献中许多先前的工作都提出了P2P流量的缓存,但是很少(如果有的话)考虑设计一个缓存系统来实际实现。本文表明,缓存P2P流量比缓存其他Internet流量更为复杂,并且需要一些新的算法和存储系统。然后,本文介绍了用于P2P流量的完整,运行中的代理缓存(称为pCache)的设计和评估。 pCache透明地拦截并服务来自不同P2P系统的流量。提出并在pCache中实现了一个新的存储系统。该存储系统已针对存储P2P流量进行了优化,并显示出优于其他存储系统的性能。此外,提出了一种新的算法来推断由缓存存储和服务P2P流量所需的信息。此外,提出了使用实际实现和实际P2P流量评估pCache各个方面的大量实验。

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