c# profiling aspx page loadtime

I would like to profile the loading of an aspx page to determine th开发者_开发技巧e bottlenecks, without using an outside tool.

How can I do this?

Thanks.

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Page Tracing might give you a start but this doesn't give you memory usage etc, only timings.

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ANTS Memory Pro filer is the best tool I have found for things like that.