Web应用系统的分布式负载测试框架研究

Research of the Web Application's Distributed Load Testing Architecture

Web应用系统的性能包括服务响应时间、资源占用以及系统的稳定性等,Web应用系统在发布之前要进行功能测试、页面测试、性能测试等,其中负载测试是Web应用系统性能测试的一个重要方面。随着Web应用程序的使用越来越广泛,对其性能进行测试也变得越来越重要,而采用自动化的测试工具极大地方便了Web系统的测试。虽然目前存在多种自动化测试工具,但都还不能用于大负载测试(百万级虚拟用户访问量)。本文首先介绍了负载测试的性质及作用,然后以Apache的开源Web测试工具JMeter为基础,通过数据库技术对其分布式的Web负载测试框架进行优化,使得测试工具能真正达到百万级的负载测试。本文着重讨论了分布式的测试框架的实现问题。

The rapid diffusion of the Internet and open standard technologies are producing a significant growth of the demand of web sites and web applications with more and stricter requirements of usability, reliability, interoperability and security. Load testing can help people make sure that software can satisfy all the requirements on performance and load increase in the future. It can also tell people why software is unconventional, and help people to optimize it. Many automatic testing tools make testing easier,but they do not support million-magnitude load testing. This paper introduces the automatic testing open source tool called JMeter,and reconstructs the distributed testing architecture using database.