Re: [Dynapi-Dev] JIT JavaScript (was My JS Optimization Site)

[Robert R. <rra...@ya...>]

The only JIT (Just-in-time) compiler I've ever heard of was for Java.
But, I guess it MS could have one for JScript, but I've never heard of
it.

-- 
// Robert Rainwater

On 2/25/2001, 2:57:17 PM EST, Erik wrote about "[Dynapi-Dev] JIT JavaScript (was My JS Optimization Site)":

> What made you think that MS has a JIT for JScript? Personally I thought this
> was one of the good news about .Net and JScript.Net. (Getting the same
> performance as from all other languages.)

> IE3+ has been using MS JVM which uses JIT but this does not mean that
> JScript benefits from this?

> Any proof / hints really apreciated. Same goes for Netscape Navigator 4 and
> Mozilla 5.

> Erik Arvidsson - WebFX.nu
> er...@ea...

> ----- Original Message -----
> From: "Raides J. Rodríguez Domínguez" <ra...@te...>

>> Well. It's not exactly a better loop optimization, but the fact that IE
>> has, by default, JIT optimization turned on. JIT stands for "Just In
>> Time" compilation, which means that code is precompiled the first time
>> it's executed and then just the compiled version is executed. After the
>> first pass, no more JavaScript code is executed in those loops. Hence
>> the speed-up. Of course, loop optimization is done in the JIT phase.



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