>perl new_cmp.pl
            (warning: too few iterations for a reliable count)
Use of uninitialized value in split at new_cmp.pl line 14, <$fh> line 408638.
Use of uninitialized value in split at new_cmp.pl line 14, <$fh> line 579912.
Use of uninitialized value in split at new_cmp.pl line 14, <$fh> line 751186.
Use of uninitialized value in split at new_cmp.pl line 14, <$fh> line 922460.
        s/iter                  c_pp                 perl                c_xs  cbxs
c_pp      45.6                    --                 -85%                -97% -100%
perl      6.71                  579%                   --                -77% -100%
c_xs      1.54                 2853%                 335%                  -- -100%
cbxs 2.50e-016 18241099999999997952% 2684799999999998464% 617799999999998208%    --