Measuring a pages performance?

Is there a way to get the performances of an asp.net control or page?? Lets say a tool that calculates the total time needed for the aspx to be executed by the server, or that measure memory leaks or over memory usage?

I use Visual Studio 2005 professional btw, is there this feature in it ?

I don't know about measuring memory leaks and usage, but if you put Trace="true" in the page directive like this: <%@.Page Trace="true" ... %> you will see a trace at the bottom of the page that shows all controls on the page along with the time taken to render them.