While JavaScript engine performance has been undergoing a renaissance, JavaScript benchmark tests haven’t been keeping pace, and aren’t adapting well to the rapid performance increases we’ve been seeing. John Resig has put together a post analysing the problem, looking at three different benchmark suites — SunSpider, Dromaeo, and V8 Benchmark — and what they are doing to counter-act the problem of error levels increasing as browsers are able to run the tests more and more quickly. It’s a detailed and interesting peek into the world of JavaScript benchmarking, and you can read John’s full post on his weblog.

Jesse Ruderman writes, “I created a page called Reducing testcases to replace the old Gecko BugAThon page.” It is a more modern document for everyone to use when working on reducing testcases for bug reports. The page is on the Mozilla Developer Center wiki, and Jesse invites everyone to help improve it.