Run 1:
                         Rate shuffled_arrayLookup hashLookup shuffled_hashLookup arrayLookup
shuffled_arrayLookup 409199/s                   --        -1%                 -1%         -2%
hashLookup           411286/s                   1%         --                 -1%         -2%
shuffled_hashLookup  415076/s                   1%         1%                  --         -1%
arrayLookup          417781/s                   2%         2%                  1%          --

Run 2:
shuffled_arrayLookup arrayLookup shuffled_hashLookup
hashLookup           412371/s         --                  -0%         -1%                 -1%
shuffled_arrayLookup 413976/s         0%                   --         -0%                 -1%
arrayLookup          414491/s         1%                   0%          --                 -1%
shuffled_hashLookup  416667/s         1%                   1%          1%                  --
C:\Documents and Settings\Mark\Desktop\Downloads> exists.pl
                         Rate shuffled_arrayLookup hashLookup shuffled_hashLookup arrayLookup
shuffled_arrayLookup 409199/s                   --        -1%                 -1%         -2%
hashLookup           411286/s                   1%         --                 -1%         -2%
shuffled_hashLookup  415076/s                   1%         1%                  --         -1%
arrayLookup          417781/s                   2%         2%                  1%          --

Run 3:
                         Rate hashLookup shuffled_arrayLookup arrayLookup shuffled_hashLookup
hashLookup           412371/s         --                  -0%         -1%                 -1%
shuffled_arrayLookup 413976/s         0%                   --         -0%                 -1%
arrayLookup          414491/s         1%                   0%          --                 -1%
shuffled_hashLookup  416667/s         1%                   1%          1%                  --