I want to load test the web application that we're working on? Can you name some automated load testing tool for a website developed on asp.net mvc3? I would like to develop it for concurrent 100 users, 200 users and so on. We want to test it with many users and test the load that creates on the application and server.
BTW, we're also running profiler at the same time to find the application bottlenecks so that we can find code that is slow that we can improve.
There are a number of different options; they vary in all kinds of exciting ways.
I use the open source Apache JMeter for this kind of testing - it's not hugely user friendly, but is very powerful once you get used to it, and the lack of licensing restrictions means you can use it in all sorts of configurations.
Some of our projects have glued JMeter into the continuous integration cycle, running performance tests on nightly builds. Some projects need to scale to huge numbers of users, and we use JMeter in the cloud (there are some service providers who can do this too).
it works nicely with Asp.Net MVC apps.
We are currently load testing our MVC application and the external company uses a product called LoadRunner.
However, depending on how intricate your testing is you could use the WebClient class as a base to run your own volume tests.
POST the values to your MVC action using the WebClient's UploadValues method where you will be validated and your session created. All other GET calls can be made with the DownloadString method to call the various urls and you can parse the resulting string for certain values. HTHWeb Performance Load Tester works very well with .NET apps. We test a lot of them (disclaimer: I work for Web Performance and am closely involved with the product).
We have integrated with Fiddler load testing tool called StresStimulus
