From: mathew <meta@...>
Date: 2005-08-12T04:56:10+09:00
Subject: Re: Performance Ruby

Goel wrote:
> Is there any benchmark of the performance of Ruby vs. C, C++, Java etc?
> 
> I couln't find it on the ruby website.

There's the Great Computer Language Shootout.
<URL:http://shootout.alioth.debian.org/>

However, remember that the single biggest factor in performance is the 
algorithm, not the language you choose to implement it in. It's not 
uncommon to move or change one line of code and suddenly quadruple the 
performance. Also, the best algorithm in language X may be very 
sub-optimal in language Y, so comparison of line-for-line translations 
of code is inherently flawed.

For example, Scheme is guaranteed to be properly tail-recursive, so a 
recursive algorithm can be implemented very efficiently. Try the same 
algorithm in (say) Visual Basic, and it'll perform dreadfully.


mathew
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