MRI-1.8.6-p399: ruby 1.8.6 (2010-02-05 patchlevel 399) [x86_64-linux]
  /usr/bin/time /home/kurt/local/ruby/1.8.6-p399/bin/ruby  problem/string_formatting.rb "MRI-1.8.6-p399" "measurement/string_formatting-MRI-1.8.6-p399.rb"
warmup: 1000000... GO!
                                              user     system      total        real
n = 1000000 : String#%                    0.900000   0.000000   0.900000 (  0.899623)
n = 1000000 : String interpolation        0.710000   0.000000   0.710000 (  0.713098)
n = 1000000 : SprintfCompiler cached      3.460000   0.000000   3.460000 (  3.459558)

FINISHED!
10.26user 0.00system 0:10.26elapsed 99%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+8outputs (0major+1128minor)pagefaults 0swaps

  MRI-1.8.7: ruby 1.8.7 (2010-04-20 patchlevel 254) [x86_64-linux]
  /usr/bin/time /home/kurt/local/ruby/1.8.7-git/bin/ruby  problem/string_formatting.rb "MRI-1.8.7" "measurement/string_formatting-MRI-1.8.7.rb"
warmup: 1000000... GO!
                                              user     system      total        real
n = 1000000 : String#%                    0.900000   0.000000   0.900000 (  0.899121)
n = 1000000 : String interpolation        0.710000   0.000000   0.710000 (  0.702978)
n = 1000000 : SprintfCompiler cached      3.550000   0.000000   3.550000 (  3.557274)

FINISHED!
10.53user 0.01system 0:10.54elapsed 99%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+8outputs (0major+1140minor)pagefaults 0swaps

  MRI-1.9: ruby 1.9.2dev (2010-05-05 trunk 27618) [x86_64-linux]
  /usr/bin/time /home/kurt/local/ruby/trunk/bin/ruby  problem/string_formatting.rb "MRI-1.9" "measurement/string_formatting-MRI-1.9.rb"
warmup: 1000000... GO!
                                              user     system      total        real
n = 1000000 : String#%                    1.160000   0.000000   1.160000 (  1.166589)
n = 1000000 : String interpolation        0.650000   0.000000   0.650000 (  0.646812)
n = 1000000 : SprintfCompiler cached      2.040000   0.000000   2.040000 (  2.041670)

FINISHED!
7.68user 0.00system 0:07.68elapsed 99%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+8outputs (0major+1093minor)pagefaults 0swaps

  JRuby-1.4: jruby 1.4.1 (ruby 1.8.7 patchlevel 174) (2010-04-26 ea6db6a) (OpenJDK 64-Bit Server VM 1.6.0_0) [amd64-java]
  /usr/bin/time /home/kurt/local/ruby/jruby-1.4.1/bin/jruby --fast problem/string_formatting.rb "JRuby-1.4" "measurement/string_formatting-JRuby-1.4.rb"
warmup: 1000000... GO!
                                              user     system      total        real
n = 1000000 : String#%                    0.744000   0.000000   0.744000 (  0.707000)
n = 1000000 : String interpolation        0.473000   0.000000   0.473000 (  0.472000)
n = 1000000 : SprintfCompiler cached      1.153000   0.000000   1.153000 (  1.153000)

FINISHED!
8.26user 0.28system 0:06.45elapsed 132%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+72outputs (1major+112769minor)pagefaults 0swaps

  Rubinius: rubinius 1.0.0-rc4 (1.8.7 9098d4d7 2010-03-31 JI) [x86_64-unknown-linux-gnu]
  /usr/bin/time /home/kurt/local/rubinius/master/bin/rbx  problem/string_formatting.rb "Rubinius" "measurement/string_formatting-Rubinius.rb"
warmup: 1000000... GO!
                                              user     system      total        real
n = 1000000 : String#%                   81.101336   0.000000  81.101336 ( 81.101347)
n = 1000000 : String interpolation        1.149503   0.000000   1.149503 (  1.149563)
n = 1000000 : SprintfCompiler cached      4.419886   0.000000   4.419886 (  4.419948)

FINISHED!
158.58user 0.18system 2:38.07elapsed 100%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+32outputs (0major+22235minor)pagefaults 0swaps