in reply to Large Array Performance

I can't help with a reason for the change in performance, but you may realise better over all performance by sorting blocks of a million or so records into temporary files, then merge the files together to generate a single large sorted file.

DWIM is Perl's answer to Gödel

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Re^2: Large Array Performance
by salva (Canon) on Jun 17, 2007 at 15:25 UTC
    and some module as Sort::External can do all this process transparently.
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