TCP调优守护进程

T. Dunigan, M. Mathis, B. Tierney
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引用次数: 92

摘要

许多高性能分布式应用程序需要高网络吞吐量,但只能实现可用带宽的一小部分。导致此问题的一个常见原因是网络设置调优不当。调优技术,如设置正确的TCP缓冲区和使用并行流,在网络社区中是众所周知的,但在网络社区之外,它们很少被应用。在本文中,我们描述了一个调优守护进程,它使用来自Unix内核的TCP检测数据,为指定路径上的指定单个流透明地调优TCP参数。不需要对应用程序进行修改,用户也不需要了解网络或TCP特征。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A TCP Tuning Daemon
Many high performance distributed applications require high network throughput but are able to achieve only a small fraction of the available bandwidth. A common cause of this problem is improperly tuned network settings. Tuning techniques, such as setting the correct TCP buffers and using parallel streams, are well known in the networking community, but outside the networking community they are infrequently applied. In this paper, we describe a tuning daemon that uses TCP instrumentation data from the Unix kernel to transparently tune TCP parameters for specified individual flows over designated paths. No modifications are required to the application, and the user does not need to understand network or TCP characteristics.
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