Hi there, I made a highly unscientific test of performance of regexps in Ruby compared to JRuby. The attached script is what I used to test this. The output is as follows for 100 000 repetitions of the same regexp applying: D:\Project\jruby>ruby testRegexpPerformance.rb Time1 0.201 for sum 150000 Time2 0.22 for sum 150000
D:\Project\jruby>bin\jruby testRegexpPerformance.rb Time1 5.698 for sum 150000 Time2 3.986 for sum 150000 This seems fairly good, actually, we're only an order of magnitude slower, which is not so bad if you think about all the stuff that's going on. The difference between Time1 and Time2 is what happens if I save the regexp in a variable before the loop, or not. As you can see, we could save pretty much performance here. Regards Ola Bini
testRegexpPerformance.rb
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