$ spw593475
       s/iter  Array ByLine    Map
Array    1.30     --   -14%   -15%
ByLine   1.12    16%     --    -1%
Map      1.10    18%     1%     --
$ spw593475
       s/iter  Array    Map ByLine
Array    1.43     --   -14%   -18%
Map      1.22    17%     --    -5%
ByLine   1.16    23%     5%     --
$ spw593475
       s/iter  Array ByLine    Map
Array    1.31     --   -14%   -15%
ByLine   1.12    17%     --    -0%
Map      1.12    17%     0%     --
$ spw593475
       s/iter  Array ByLine    Map
Array    1.31     --   -13%   -15%
ByLine   1.13    16%     --    -1%
Map      1.11    17%     1%     --
$ spw593475
       s/iter  Array ByLine    Map
Array    1.30     --   -14%   -16%
ByLine   1.12    16%     --    -3%
Map      1.09    19%     3%     --
$