EDIT: Sorry, the image links were broken everywhere but on the main page of my blog. Fixed now. Still getting used to Octopress. :)
It’s been a while since I last wrote about it, but the A-Team is still maintaining the SpeedTests framework, gathering the results of a few different benchmarks on all the major browsers on a 32-bit Windows 7 installation. I haven’t had any time to add new tests, but I made sure to keep the results coming in for the tests we do have.
With IonMonkey having landed a couple weeks ago, I expected to see some big improvements. Sure enough, we can see a big jump in Kraken, as David Anderson saw:
That’s about a 27% improvement, right about what David measured on his machine. That makes Firefox about 16% faster than Chrome 21 (which itself improved by about 6% from Chrome 20).
As for V8,
The data is a bit noisy, but it looks like an improvement of around 9-10% on the overall results (geometric mean of the total test results). Not as much of an improvement, and Chrome is still 25% better, overall.
The “Speed” Tests also run (a sort of old version of) test262, a conformance suite:
No changes there, which is what we would expect.