Load testing an ASP.NET web site

Question

I want to load test an ASP.NET web service. I have Visual Studio 2008 Professional Edition and Visual Studio 2010.

Can either one of these products facilitate load testing? I can't seem to find anything and all Google returns is higher end editions of Visual Studio.

If not, what are some of the alternatives.

Or better yet, is there a product where I can feed it an IIS log and it will essentially replay it?

Answer 1

There is a free Microsoft load testing tool called WCAT. It is a command-line HTTP load generator that replays a test case script. To avoid creating the script manually, you can record your test case in Fiddler and then generate scrip using WCAT Fiddler Extension. This blog has a step-by-step instruction, which I tested, and it works.

On your question about replaying IIS log: check this source. It outlines how to generate WCAT script by querying IIS log using Log Parser. I did not test it though.