[antlr-interest] Re: Generated C++ Parser Performance

[Ruslan Zasukhin]

On 3/16/04 8:48 AM, "lgcraymer" <lgc at mail1.jpl.nasa.gov> wrote:

> I'd bet on the lexer then.  The only other likely sources of slowdown
> memory are memory management--a custom allocator for ASTs might
> help--and exceptions (syntactic predicates).  Ric may have some other
> suggestions.

Lorin,

Why you say this is lexer fault?
Java parser uses the same ANTLR lexer, yes?

So why C++ parser is slower of Java ?!

Sounds not pleasant.


Oh guys:    "I feel the need...the need for speed"

-----------------------
Terrence, Rick,

Speed should be the highest priority for ANTLR 3.0 IMHO.

You should develop 
    -- regression tests
    -- regression BENCHMARKS
    -- run benchmarks with profiles
        improve everything you can improve.



-- 
Best regards,
Ruslan Zasukhin      [ I feel the need...the need for speed ]
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e-mail: ruslan at paradigmasoft.com
web: http://www.paradigmasoft.com

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