Where do your 10,000,000 key-value pairs come from? The system with the least overhead would be to determine the max N while loading them in, obtaining them from mars, etc. Since you have to go through the input once, anyway, during input, you can keep track of the top N at the same time.

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In reply to Re: *Fastest* way to print a hash sorted by value by TomDLux
in thread *Fastest* way to print a hash sorted by value by smellysocks

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