Identifying slowdown in IE

I am wo开发者_C百科rking on a site right now that is experiencing a slow down in Internet Explorer. More specifically, the page just freezes for around 2 to 3 seconds after loading all of the visible page elements, as if it is still loading something. Normally, I just profile the site in FF or Chrome, but this issue is specific to IE. I tried using the profiler in IE 8, but it is not getting me anywhere. Does anyone have any suggestions for what to use to identify the point of slow down in IE (for instance, something similar to the network profiling available in chrome)?

You wrote you tried to use profiler in IE, but did you use IE Developer Tools? In section Using the Profiler in this article there is a screenshot of profiler and Function view, but there is also Call Tree view you may want to try.

Press Start profiling, do the action you want to inspect, press Stop profiling, change to Call tree view, sort by inclusive time descending, expand most time-expensive option (first), expand next one, go on, and then you should be able to find slow down point.

I was able to find few code fragments in my project which were quite big problem for IE (like making 1,8k RexExp object etc.).