From: stef <na@...>
Date: 2006-11-19T15:10:08+09:00
Subject: Re: Ruby vs Java vs c++

On Sun, 19 Nov 2006 14:36:05 +0900, Roseanne Zhang wrote:

> El Gato wrote:
>> Ruby and the speed of C++.  Welcome to the club.  Strangely enough, 
>> Java's domain really is somewhere between each.  Plus, you'll never 
>> truly appreciate a language like Ruby until you deal with a more... 
>> verbose language such as Java.
> 
> Everybody here or somewhere else take that for granted: Java is slower 
> than C++, but actually that is not true.
> 
> I thought so too. However, my computational heavy practice proved, to 
> certain extent, otherwise.
> 
> Interesting enough, I was a very experienced C++ programmer, and 
> learning Java in 2000. I got an very heavy algorithm job. I write the 
> same code in Java and C++. When the algorithm was relatively simple, my 
> C++ code was about twice faster than Java c++/Java = 610/1085. However, 
> when my algorithm became extremely heavy iteration, the result was 
> c++/Java = 26000/12000. Java was more than twice faster than C++.
> 
> I asked several Java experts include Jason Hunter, Daniel Brookshier 
> about the question, why? The answers are the same, JIT!!!!
> 
>

thanks for the info; i see that i was not the only one with that idea
(whether pre-conceived or not).
i have to say that o/all i have seen java slower than c++ but NOT always
e.g. my programmer friend who can write in java really complex aps yet
super fast, user friendly and pleasant to the eye....  he tells me it is
because he knows how to program (and because JVM's r better than they used
to be.)

he might have a point there.....