Rate  any_cr     any    ugly ugly_cr    hash
any_cr   869/s      --    -38%    -54%    -65%    -77%
any     1395/s     61%      --    -26%    -43%    -63%
ugly    1896/s    118%     36%      --    -23%    -49%
ugly_cr 2465/s    184%     77%     30%      --    -34%
hash    3725/s    329%    167%     96%     51%      --
[download]

On a tangent, I often thought Benchmark would have been better designed with an additional testing interface, allowing to make sure one is not comparing apples with oranges.

Cheers Rolf
_{(addicted to the Perl Programming Language :)
see Wikisyntax for the Monastery}