C:\test>\perl5.18\bin\perl.exe 1046579.pl -N=2**20
           Rate   classic translate       str
classic   482/s        --      -30%      -34%
translate 688/s       43%        --       -6%
str       730/s       52%        6%        --

C:\test>\perl5.18\bin\perl.exe 1046579.pl -N=2**29
             Rate   classic       str translate
classic   0.945/s        --      -21%      -26%
str        1.20/s       27%        --       -6%
translate  1.27/s       35%        6%        --

C:\test>\perl5.18\bin\perl.exe 1046579.pl -N=2**30
          s/iter   classic       str translate
classic     2.06        --      -19%      -26%
str         1.68       23%        --       -9%
translate   1.53       35%       10%        --

C:\test>\perl5.18\bin\perl.exe 1046579.pl -N=2**31
          s/iter       str   classic translate
str         3.97        --       -7%      -23%
classic     3.69        8%        --      -17%
translate   3.06       30%       20%        --