[Collisions] Multi-threaded Perl request

Roy Hooper roy at demandmedia.com
Wed Sep 25 03:34:36 UTC 2013

No objections!  Perl of any vintage and configuration is fine for me!

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On Sep 24, 2013, at 11:07 PM, "Chris Cowherd" <chris at donuts.co<mailto:chris at donuts.co>> wrote:

Hey Kevin - Roy from Demand Media will be your best bet on that question (cc'd in case he's not on the list)
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On Tue, Sep 24, 2013 at 6:52 PM, Kevin White <kwhite at jasadvisors.com<mailto:kwhite at jasadvisors.com>> wrote:
The version of Perl installed on an3 and an4 in /usr/bin/perl is actually a symlink to /usr/local/bin/perl5.14.4.

That version of Perl was not built multi-threaded enabled.  It appears that the ports system of FreeBSD doesn’t default to multi-threaded Perl, for reasons unknown.

Processing these gigantic data sets, I really could benefit from having threaded Perl.  It would make it far easier to launch a thread of work and then gather its results when it was finished.  There is some amount of easy-to-harvest parallelism, because there are lots of small TLD data sets.  But the large data sets, like home, end up running for hours as a single thread.  I could do better, if I had multi-threaded Perl.

I’ve asked admin, and they suggested I ask this list.

Who all uses Perl on this box?  Does anyone have any objection to replacing the perl-5.14.4 build that’s out there with one that’s been built with threading enabled?

I understand that this could be considered a big deal, which is why I’m asking the group of users that I know of.


Kevin White
JAS Global Advisors


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