What do you want to see next?

[pmeenan]

(07-02-2010 06:26 AM)Sergey Chernyshev Wrote:  I just remembered a problem I came across for visual comparisons - I can't compare first run with second run (with primed cache) of the same page.

My use-case is obvious - to see how caching affects the speed of rendering.

It would probably be also meaningful to allow to compare two cached versions of different pages (e.g. dev vs. production) too.

I hope it's easy to do - it looks like images are already collected (filmstrips are different for them) and it's just a matter of providing the user interface.

Well, there's "can't" and there's "can't through the current UI" ;-) (like you noticed).

You can actually get them compared in the UI but it requires specifying things manually on the url. If you look at the URL in the filmstrip view, there is a list of comma separated tests. Each one of those tests can have some options specified that will let you specify which exact run you want to use, a specific label and if you want the first view or repeat view.

An example is probably helpful: http://www.webpagetest.org/video/compare...eat%20View

-r:X will let you specify a run (where X is the run)
-l:Label will let you specify a label to use
-c:X will let you specify first (X=0) or repeat (X=1) view

The only thing missing is figuring out how to present it to the user for them to select without confusing them (UI was never my strong suit).