Servo: Inside Mozilla's mission to reinvent the web browser (ZDNet)

> "People say Chrome is faster" is not actionable information.
It is. And the action that you are supposed to take is to research why people perceive Firefox to be faster. That's hard. You'd probably need to invite people to try some hacked version of Firefox that tracks everything the user does, including time stamps of all the relevant events. How long does it take to compile a given piece of JS code? To run it? To lay out the page again in response to DOM pages? How about the UI responsiveness (i. e. when I click a button or open a menu or something, how long does it take for the relevant menu to pop up or for the dialog to show or whatever I was doing)? What about Network latencies? And to make a meaningful comparison, the same needs to be done on Chrome. It's a hell of a lot of work, but I think it's what needs to be done if you want to figure out why so many people think that Chrome is faster.

Well, but then, this is just armchair reasoning on my side and I don't know to what degree you already measure stuff like that...