Rate  and  mod
and 2517343/s   -- -13%
mod 2898815/s  15%   --
[jbenjore@w3d211 src]$ perl odd.pl
         Rate and mod
and 2545188/s  -- -9%
mod 2792512/s 10%  --
[jbenjore@w3d211 src]$ perl odd.pl
         Rate and mod
and 2667452/s  -- -2%
mod 2727161/s  2%  --