simple benchmarking jruby

behnchmark

rvm use 1.9.3

ruby bn.rb

Rehearsal --------------------------------------------
Hash:set   7.970000   0.030000   8.000000 (  8.049540)
----------------------------------- total: 8.000000sec

               user     system      total        real
Hash:set   7.910000   0.030000   7.940000 (  7.998218)

rvm use jruby 1.7.0

ruby -Xcompile.invokedynamic=true --server -J-Xmx2048m -J-Xms2048m -J-Xmn512m -J-XX:MaxPermSize=512m  bn.rb

Rehearsal --------------------------------------------
Hash:set   2.380000   0.150000   2.530000 (  1.614000)
----------------------------------- total: 2.530000sec

               user     system      total        real
Hash:set   1.510000   0.010000   1.520000 (  0.990000)

bn.rb

require "benchmark"


Benchmark::bmbm do |x|
  x.report("Hash:set") do
    (0...1000000).map {|n| (n + 1000).to_s.gsub("0","1000").to_i }
  end
end