La guerra de los browsers

22.06.2008 @ 17:33 \05\Sun, 22 Jun 2008 17:33:18 +0000\18 +0000 UTC

La guerra de los browsers parte 2 o “el regreso del Jedi” tiene un ganador, al menos por el momento, en cuanto a velocidad se refiere. El ganador es Safari

Según las pruebas realizadas Safari le partió su mandarina en gajos a Internet Explorer 7 y a firefots 3.

We had high hopes that FF3GA would at least match Safari 3.1.1 in order to contend with Apple’s Safari 4 just around the corner. Infact that graph is simply those tested in our browser war series; the WebKit nightlies (engine for SF4) deliver a knockout blow. And it’s not just our favorite testing software that shows this; we useOpenQA Selenium which allows us to nicely calculate time rendering a page while navigating the Zimbra AJAX web-client. Other commonly used benchmarks like SunSpider & VeriTest show very similar results and Safari 4 nightlies even fare well on the Acid3 DOM and JavaScript test, beating out Firefox 3 every time. But we’ll let the judges analyze and discuss later.

Y todo gracias al nuevo engine de Javascript para Safari llamado Squirrelfish (pescado ardilla).

The SquirrelFish JavaScript interpreter in Safari 4 is a bytecode engine which eliminates almost all of the overhead of a tree-walking JavaScript interpreter. According to the WebKit project, the SquirrelFish engine is 1.6 times faster than the engine in Safari 3.1. SquirrelFish does its magic by turning JavaScript script into so-called bytecodes, an optimized code much more suitable for run-time execution than natural language-based commands, which are longer and more complicated to interpret – and therefore are slower. It also leaves room to experiment with things like constant folding, type inference, specialization based on expression context, peephole optimization, and escape analysis.

Aquí toda la info.

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