But do you confirm that the processing time with Perl for the OPed code is in excess of 12 minutes? That's what would be shocking to me.

Someone else would have to advise about differences between distributions (I'm running Strawberry 5.14.4.1 for my tests (update: on Windows 7)), but I would be flabbergasted by such a performance difference.

Give a man a fish:  <%-{-{-{-<

In reply to Re^3: How to optimize a regex on a large file read line by line ? by AnomalousMonk
in thread How to optimize a regex on a large file read line by line ? by John FENDER

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