Step aside, Chrome, for Squirrelfish Extreme
It's called Squirrelfish Extreme, and the WebKit programmers said Thursday in a blog posting that it's more than twice as fast as the first-generation Squirrelfish announced in June and more than three times faster than the current WebKit 3.1 version. They based their conclusions on one benchmark, SunSpider.
For details of Squirrelfish's techniques--bytecode optimization, a polymorphic inline cache, a context-threaded just-in-time compiler, and a regular expression just-in-time compiler--check the WebKit blog.
Charles Ying also performed SunSpider tests that showed Squirrelfish beating Google's V8 and Mozilla's Tracemonkey on a 2.4GHz iMac.