小并不总是美丽的
Small Is Not Always Beautiful
摘要：
对等内容分发系统已经非常流行，并且现在作为在互联网上传播视频流的手段正在获得势头。在许多这些协议中，包括流行的BitTorrent，内容被分成大部分固定大小的片段，允许客户端同时从许多对等端下载数据。这使得工件尺寸对性能可能至关重要。然而，以前的研究工作在很大程度上忽略了这个参数，而是选择关注其他参数。本文介绍了一个控制BitTorrent的测试平台上的实际实验的结果与不同的块大小。我们证明，这个参数确实是至关重要的，因为它决定了系统中的并行度，我们调查的最佳片大小分布小和大的内容。我们还指出了一个相关的设计权衡，并解释如何BitTorrent的选择分割成子块试图解决它。
英文摘要：
Peer-to-peer content distribution systems have been enjoying great popularity, and are now gaining momentum as a means of disseminating video streams over the Internet. In many of these protocols, including the popular BitTorrent, content is split into mostly fixed-size pieces, allowing a client to download data from many peers simultaneously. This makes piece size potentially critical for performance. However, previous research efforts have largely overlooked this parameter, opting to focus on others instead. This paper presents the results of real experiments with varying piece sizes on a controlled BitTorrent testbed. We demonstrate that this parameter is indeed critical, as it determines the degree of parallelism in the system, and we investigate optimal piece sizes for distributing small and large content. We also pinpoint a related design trade-off, and explain how BitTorrent's choice of dividing pieces into subpieces attempts to address it.
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。
