I ran your benchmark code above, changing the points from 1000 to 10 000. I got the following results:

              Rate davidrw_2 davidrw_1   op_cmp2   op_orig   ternary
davidrw_2  48968/s        --      -21%      -87%      -91%      -91%
davidrw_1  62049/s       27%        --      -83%      -89%      -89%
op_cmp2   363917/s      643%      487%        --      -35%      -36%
op_orig   559112/s     1042%      801%       54%        --       -2%
ternary   570934/s     1066%      820%       57%        2%        --

[download]
Note that I changed the map code to: 
   my @comparisons = map { [($_ - 15) * 2000, $_] } 16 .. 24;

[download]
That is, 16 .. 24 instead of 24 .. 16.

In reply to Re^4: alternatives to if and series of elsif by kiat
in thread alternatives to if and series of elsif by kiat

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