Webstone

For benchmarking performance of web server system, we used Webstone. It is one of most popular and industry accepted free benchmark program. This software has two parts, a master process and multiple client processes which may be rexeced on remote machines. After establishing trust relationship between clients and master machine, webstone rexecs client process (as specified in test bed configuration file) and client processes generate requests and report back statistics to webstone. Webstone prints performance results like number of connection/sec., connect time, response time, thruput of client and servers, error level, Little's load factor etc.

More information about Webstone can be found at http://www.mindcraft.com/webstone/.