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Re: [xml-dev] Speed in Languages and Browser Architectures

From: Rick Marshall <rjm@-------.--->
To: Elliotte Harold <elharo@-------.---.--->
Date: 3/1/2007 8:13:00 PM
which of course is also a major weakness of SQL.

There is a deep  philosophical issue here.

If I write a Java VM in C why can I write a program in Java that can run 
faster that a functionally equivalent program in C? (or assembler for 
that matter).

Is there a permathread for this?

The implication is that Java can create a sequence of instructions that 
C can't.

Rick

Elliotte Harold wrote:
> Tei wrote:
>
>> If you really need raw speed C or C++ will be always faster than Java.
>
> No, it won't. It has been proved false by counterexample that C/C++ 
> will *always* be faster than Java.  On some problems, Java already is 
> faster than C or C++. Fact is some problems are more amenable to the 
> sort of runtime JIT optimization Java does. Others are more amenable 
> to the sort of static optimization C/C++ do. Which one is faster 
> depends on what sort of problem you have.
>


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