Rate split2 split1 unpack regexp    int     tr
split2 12308/s     --    -8%   -32%   -66%   -68%   -72%
split1 13423/s     9%     --   -26%   -63%   -65%   -69%
unpack 18100/s    47%    35%     --   -50%   -52%   -59%
regexp 36036/s   193%   168%    99%     --    -5%   -18%
   int 38095/s   210%   184%   110%     6%     --   -13%
    tr 43956/s   257%   227%   143%    22%    15%     --