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#!/usr/bin/perl

...
                  }
              })
}

START:
             Rate    grap    grep   grap2   grap3   first foreach
...
first    372/s    275%    208%    199%      --    -29%    -49%
foreach  526/s    430%    335%    323%     41%      --    -28%
grep     735/s    640%    508%    491%     98%     40%      --