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All the Perl that's Practical to Extract and Report

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  • Some other things on the other hand are much slower, most notably regexes (almost by a factor 2 when comparing 5.5.4 with a threaded 5.8.6).
    If I may just take one uninformed guess on the cause: Unicode. Internal Unicode support was added starting with 5.6.0.
    • Internal Unicode support was added starting with 5.6.0.

      Ah, that's plausible. I was also thinking of possible causes for this decrease in performance but didn't think of the obvious case.

      And the additional slow-down caused by threads is then also fairly obvious: Perl's regex engine, which is very non-reentrant by nature, has to work more reentrantly now.

      Other than that, I agree with mir's comment that with all the new features and bugfixes, the results are very favourable for perl and its porters. I alw