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Re: JIT compilers for Python, what is the latest news?

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From Joshua Landau <joshua.landau.ws@gmail.com>
Date Sat, 6 Apr 2013 11:27:34 +0100
Subject Re: JIT compilers for Python, what is the latest news?
To John Ladasky <john_ladasky@sbcglobal.net>
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On 5 April 2013 03:29, John Ladasky <john_ladasky@sbcglobal.net> wrote:

> I'm revisiting a project that I haven't touched in over a year.  It was
> written in Python 2.6, and executed on 32-bit Ubuntu 10.10.  I experienced
> a 20% performance increase when I used Psyco, because I had a
> computationally-intensive routine which occupied most of my CPU cycles, and
> always received the same data type.  (Multiprocessing also helped, and I
> was using that too.)
>
> I have now migrated to a 64-bit Ubuntu 12.10.1, and Python 3.3.  I would
> rather not revert to my older configuration.  That being said, it would
> appear from my initial reading that 1) Psyco is considered obsolete and is
> no longer maintained, 2) Psyco is being superseded by PyPy, 3) PyPy doesn't
> support Python 3.x, or 64-bit optimizations.
>
> Do I understand all that correctly?
>
> I guess I can live with the 20% slower execution, but sometimes my code
> would run for three solid days...
>

If you're not willing to go far, I've heard really, really good things
about Numba. I've not used it, but seriously:
http://jakevdp.github.io/blog/2012/08/24/numba-vs-cython/.

Also, PyPy is fine for 64 bit, even if it doesn't gain much from it. So
going back to 2.7 might give you that 20% back for almost free. It depends
how complex the code is, though.

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Thread

JIT compilers for Python, what is the latest news? John Ladasky <john_ladasky@sbcglobal.net> - 2013-04-04 19:29 -0700
  Re: JIT compilers for Python, what is the latest news? MRAB <python@mrabarnett.plus.com> - 2013-04-05 03:39 +0100
    Re: JIT compilers for Python, what is the latest news? John Ladasky <john_ladasky@sbcglobal.net> - 2013-04-05 01:34 -0700
      Re: JIT compilers for Python, what is the latest news? Devin Jeanpierre <jeanpierreda@gmail.com> - 2013-04-05 14:37 -0400
      Re: JIT compilers for Python, what is the latest news? Joshua Landau <joshua.landau.ws@gmail.com> - 2013-04-06 11:23 +0100
    Re: JIT compilers for Python, what is the latest news? John Ladasky <john_ladasky@sbcglobal.net> - 2013-04-05 01:34 -0700
  Re: JIT compilers for Python, what is the latest news? Chris Angelico <rosuav@gmail.com> - 2013-04-05 19:27 +1100
    Re: JIT compilers for Python, what is the latest news? John Ladasky <john_ladasky@sbcglobal.net> - 2013-04-05 01:39 -0700
      Re: JIT compilers for Python, what is the latest news? Chris Angelico <rosuav@gmail.com> - 2013-04-05 19:49 +1100
      Re: JIT compilers for Python, what is the latest news? Ian Kelly <ian.g.kelly@gmail.com> - 2013-04-05 11:32 -0600
        Re: JIT compilers for Python, what is the latest news? John Ladasky <john_ladasky@sbcglobal.net> - 2013-04-05 11:13 -0700
          Re: JIT compilers for Python, what is the latest news? Ian Kelly <ian.g.kelly@gmail.com> - 2013-04-05 13:05 -0600
        Re: JIT compilers for Python, what is the latest news? John Ladasky <john_ladasky@sbcglobal.net> - 2013-04-05 11:13 -0700
      Re: JIT compilers for Python, what is the latest news? Robert Kern <robert.kern@gmail.com> - 2013-04-05 10:46 +0100
    Re: JIT compilers for Python, what is the latest news? John Ladasky <john_ladasky@sbcglobal.net> - 2013-04-05 01:39 -0700
      Re: JIT compilers for Python, what is the latest news? ptb <petertbrady@gmail.com> - 2013-04-05 05:18 -0700
  Re: JIT compilers for Python, what is the latest news? Ian Foote <ian@feete.org> - 2013-04-05 13:50 +0100
  Re: JIT compilers for Python, what is the latest news? Joshua Landau <joshua.landau.ws@gmail.com> - 2013-04-06 11:27 +0100
  Re: JIT compilers for Python, what is the latest news? rusi <rustompmody@gmail.com> - 2013-04-06 08:45 -0700
  Re: JIT compilers for Python, what is the latest news? Stefan Behnel <stefan_ml@behnel.de> - 2013-04-06 21:41 +0200

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