title: Tool to measure Render time
body: <p>Is there a tool out there to measure the actual Render time of an element(s) on a page?  I don't mean download time of the resources, but the actual time the browser took to render something.  I know that this time would vary based on factors on the client machine, but would still be very handy in knowing what the rendering engine takes a while to load.  I would imagine this should be a useful utility since web apps are becoming pretty client heavy now.  Any thoughts?</p>