Tool to monitor IE performance running JavaScript

Question

Company I work for are one of the largest betting companies in Europe and the website has thousands of lines of JavaScript on all our pages.

Lately Internet Explorer versions earlier than version 9 are running painfully slow and I want to be able to monitor what parts of a page load (including scripts) that are slow. I know that IE are slower in general and has DOM API issues etc.

What I want to accomplish is a way to quickly identify slow parts and see if we can replace the code with IE specific code that will render with higher performance.

Cheers, Stefan

Answer 1

I've used dynaTrace AJAX [sic] edition before and found it useful.