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All the Perl that's Practical to Extract and Report

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  • PPI is slow. Really slow. It handles about 1500 lines per gigacycle (on average) but when you run it against a big directory of stuff, it still feels really slow.

    I've optimised (and in a few places micro-optimised) the hell out of it. I really don't know what more I can do. Maybe there's something there for you.

    One clue that sticks out is that UNIVERSAL::isa (the function) shows up in some of my profiling reports for it.

    Perhaps there's something that could be done to make UNIVERSAL::isa faster?
  • I believe that Plucene's slowness is the main thing preventing it from being viable. Or at least it was at YAPC Belfast; things may have changed since then.


  • The Phalanx Project [] identifies important, commonly used modules. You could use the modules listed to discover where people might care about Perl running slowly.