------ art_14291_32616520.1213018619734 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline I knew that there was a penalty to be paid when running JRuby, but I did not know how high. I developed a Sudoku solver, which actually solves simple to medium difficult puzzles. I am still struggling to make it solve "hard" problems. I just installed JRuby yesterday and wanted to compare it against Ruby. I executed the same program: The results are in: 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* BTW, there is no GUI in my program. I hope to learn the GUI part with JRuby. That's the main reason why I downloaded JRuby, NetBeans, Java JDK/JRE, Etc. I guess there is trade-off which one must be willing to accept. Am I in the ball-park? Regards, Victor ------ art_14291_32616520.1213018619734--