The V8 Myth: Why JavaScript is not a Worthy Competitor
Dynamic analysis is a great complement to static analysis: unfortunately, it is not a replacement. An ActionScript program that has been optimized to death by an AOT compiler can, almost trivially, beat a JavaScript program that is optimized on the fly by the JIT compiler. The only way out would be to let the JIT compiler work till death, but that is not an option! Checkmate.
So yes, you will hear about all the great things in V8 (JavaScript VM), including type inference. The fact is, there is no way a JIT compiler can afford to do the kind of modular analysis that an algorithm implemented in an AOT compiler can.
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Regardless how arrogant it sounds, it's true. Numbers do follow in the article.
