Hi, I have an application developed using the Apache Tomcat 4.0.1. I want to run that application in Tomcat 5.5,WebSphere 6.0 and SunAppServer 7.0, and need to measure the performance. Before installing all the web server i want to know the Hardware configuration so that I can buy the box and proceed doing the performance benchmark.
It would be very hard for us to know what hardware you need. It would depend on your app, your expected traffic, what testing software you are using, etc...
Does your testing software provide any guidelines?