From: James Edward Gray II <james@...>
Date: 2004-08-28T04:16:59+09:00
Subject: Re: performance comparison

On Aug 27, 2004, at 1:55 PM, George Ogata wrote:

> Boris Glawe <boris@boris-glawe.de> writes:
>
>> What's the reason for this big performance difference ?
>
> I don't know what your C code looks like, but when you consider what
> must go in a typical C statement vs. an equivalent ruby statement, I
> don't find it too surprising.  How do other interpreted languages
> (e.g., python) go?

I can't speak for Python, but I have a lot of experience with coding 
chess searches in Perl.

Unfortunately, I've never been able to achieve reasonable performance 
there either.  I've had some luck using a simple string as my data 
structure and avoiding higher level manipulations.  I've also tried 
unrolling recursion, again with some success.

If memory serves, my personal best is somewhere around 40x slower than 
C.  Of course, my C skills aren't anything to brag about so that may be 
giving Perl an advantage...  <laughs>

James