[markdog12]

> Servo is already a runnable browser, and I'm amazed how fast it is

First of all, I think the idea behind Servo is awesome, and I follow it. But I've been testing it on Mac OS and Windows, and it is not a runnable browser, nor fast (as expected!). CPU is often fully pegged and it's very iffy if any UI elements or page loads work. Not to say they won't get there, but it's still very, very early and buggy.

[Manishearth]

Yeah, we don't track perf regressions like released browsers so often we land something that negates the performance benefit. The current servo releases are just alpha, so it's not too important to stay on top of, but we should probably start caring about this more.

We had a similar issue with Stylo (Servo style system in gecko) recently where there were bugs in the parallelism code making us slower than gecko. Fixed, now we're faster again. We only recently started tracking performance properly, and it was caught and fixed in a few weeks.