Netest: a tool to measure the maximum burst size, available bandwidth and achievable throughput
Netest: a tool to measure the maximum burst size, available bandwidth and achievable throughput
复制标题
Netest：测量最大突发大小、可用带宽和可实现吞吐量的工具
DOI：
--
复制
发表时间：
2003
期刊：
影响因子：
--
通讯作者：
B. Tierney
中科院分区：
文献类型：
--
作者：
Guojun Jin;B. Tierney
区分可用的带宽和可实现的吞吐量对于改善网络应用程序性能至关重要。可实现的吞吐量是考虑到许多因素，例如网络协议，主机速度，网络路径和TCP缓冲区空间，而可用的带宽仅考虑网络路径。在不了解这种差异的情况下，试图改善网络应用程序的性能就像“盲人感觉到大象”问题（J. Gemmill，2001）。我们定义和区分带宽和吞吐量，并讨论每个部分的哪一部分是可以实现的，哪些是可用的。另外，我们介绍并讨论了一个新概念，最大爆发大小，这对于获得良好的网络性能至关重要。引入了一种新工具，即Netest，旨在帮助用户确定可用的带宽。它提供信息以实现更好的吞吐量，同时公平地共享可用的带宽，从而减少对网络的滥用。
Distinguishing available bandwidth and achievable throughput is essential for improving network application performance. Achievable throughput is the throughput considering a number of factors such as network protocol, host speed, network path, and TCP buffer space, whereas available bandwidth only considers the network path. Without understanding this difference, trying to improve network application performance is like the "blind men feeling the elephant" problem (J. Gemmill, 2001). We define and differentiate bandwidth and throughput, and discuss which part of each is achievable and which is available. Also, we introduce and discuss a new concept, maximum burst size, that is crucial to obtaining good network performance. A new tool, netest, is introduced which is designed to help users to determine the available bandwidth. It provides information to achieve better throughput while fairly sharing the available bandwidth, thus reducing misuse of the network.