aha you have a profiler in the Visual Studio Team system for developers, to use it, just go to Tools/Performance Tools, where you can create a new performance session.
I also recommend you to use it (it will be easier) together with unit testing, when you run unit tests, if you go to the results and right click on any test, you will be able to create performance session on that method.
I know it's a really brief resume, but here I put you some really good articles about it:
(three articles about how to use it):
http://blogs.msdn.com/ianhu/archive/2005/02/07/368779.aspx
http://blogs.msdn.com/ianhu/archive/2005/02/11/371418.aspx
http://blogs.msdn.com/ianhu/archive/2005/02/21/377384.aspx
and a complete MSDN article on performance tool and how it works
http://msdn.microsoft.com/msdnmag/issues/04/12/EnterprisePerformance/default.aspx
Hope this helps you.
