From: Charles Oliver Nutter <charles.nutter@...>
Date: 2008-06-10T18:27:39+09:00
Subject: Re: Ruby vs JRuby Performance

Victor Reyes wrote:
> ruby -v
> ruby 1.8.6 (2007-09-24 patchlevel 111) [i386-mswin32]
> 
> *Ruby:
> ruby sudoku01final.rb
> Elapsed Time: 0.437 Secs*
> 
> jruby -v
> ruby 1.8.6 (2008-05-28 rev 6586) [x86-jruby1.1.2]
> *JRuby:
> jruby sudoku01final.rb
> Elapsed Time: 1.058 Secs*

Far too short.

~/amsterdam ➔ time ruby -e "puts 1"
1

real	0m0.006s
user	0m0.003s
sys	0m0.004s

~/amsterdam ➔ time jruby -e "puts 1"
1

real	0m0.594s
user	0m0.460s
sys	0m0.101s

Is JRuby 100 times slower than Ruby? No. It is too short a test. Run 
something longer and you'll get more realistic results.

- Charlie