Do you have actual performance problems? If not, don't worry about it. And if you have performance problems, profile your code first to find out which parts of the code consume the most time.

In case of many items the hash lookups can be reduced with a Schwartzian Transform, but it will eat more memory in turn, and likely to only give you a small speedup, if any.

In reply to Re^3: What are the other option for sorting the keys of hash of hashes by moritz
in thread What are the other option for sorting the keys of hash of hashes by luckypower

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