A Model of Web Server Performance
A Model of Web Server Performance
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发表时间：
1996
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通讯作者：
Louis P. Slothouber;D. Ph.
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作者：
Louis P. Slothouber;D. Ph.
尽管越来越多的Web（即，HTTP）服务器，但对它们的性能特征知之甚少。我们提出了一个简单的，高层次的，开放的网络模型，从中我们得到了几个一般的Web服务器在互联网上的性能结果。多服务器系统也进行了分析。定义了Web服务器服务能力的理论上界。当Web服务器接近这个边界时，响应时间突然增加到无穷大，使服务器无法工作;但是限制服务器的同时连接可以防止这个问题。文件大小，服务器速度和网络带宽对响应时间的影响也进行了研究。此外，几种提高服务器性能的方法的相对优点进行了评估。
Despite the increasing number of Web (i.e., HTTP) servers in use each day, little is definitively known about their performance characteristics. We present a simple, high-level, open queueing network model from which we derive several general performance results for Web servers on the Internet. Multiple-server systems are also analyzed. A theoretical upper bound on the serving capacity of Web servers is defined. As Web servers approach this boundary response times increase suddenly toward infinity, disabling the server; but limiting the server's simultaneous connections prevents this problem. The effects of file size, server speed, and network bandwidth on response time are also investigated. In addition, the relative merits of several methods of improving server performance are evaluated.