Out of curiousity, was your comparator of the {$a <=> $b} type, or did you pass parameters to it? It seems as if we could tap into sort's efficient comparator speed if we could use $a and $b from C code. Generic comparisons might be easier that way.

In reply to Re^8: Better mousetrap (getting top N values from list X) by tall_man
in thread Better mousetrap (getting top N values from list X) by Limbic~Region

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