Re: Truly later thinking...Honey, grab me another beer

[Joe Pluta <joepluta@xxxxxxxxxxxxxxxxx>]

Thorbjørn Ravn Andersen wrote:
> Depends on the language.
No, it doesn't.

> Perl e.g. has very powerful text operators, is 
> interpreted, but is still one of the best ways to massage large text 
> files (Perl regular expressions are NICE).
>   
But correctly written C code that does the same thing will run much faster.

> (and I don't think I'll bite on why compiled Java is slow on the i ;-)  )
Not sure what you mean here.  Are you saying that Java on the i is 
slower than Java on a Windows machine?  That's got nothing to do with 
the issue.  On the same platform, though, I disagree:  Java code 
compiled by the JIT compiler runs faster than the same Java code 
interpreted - on any machine, including the i.

Now, if you mean using the CRTJVAPGM compared to the JIT compiler, 
that's a different question.  CRTJVAPGM (which AFAIK is no longer 
recommended) does static optimization which can't compete with the 
dynamic optimizations of a good JIT compiler.  If you want to learn 
more, start with Wikipedia:

http://en.wikipedia.org/wiki/Compiler_optimization

I don't pretend to be an expert.  Optimization is a class of programming 
way above my expertise.  If you want to talk about people who really 
know how a computer works, the optimization folks are the very best in 
the business.

Joe