Inserting each hash key into a heap doesn't seem to offer a great deal of performance gain if any, given that on the one hand each insert is becoming more and more costly and on the other perl knows it can optimise the sort to take advantage of the hash, whereas the heapify can't do that in this example. I suspect therefore that a great deal more brain-grief would be needed to beat the simplistic sort algorithm even though only the top n are needed.

One world, one people

In reply to Re^2: Sorting Hash By Large Number Values by anonymized user 468275
in thread Sorting Hash By Large Number Values by NathanE

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