Mailman 3 January 2004 - pypy-dev

Andy Robinson wants to pen in a day for the ACCU Python-UK conference
by Laura Creighton Jan. 6, 2004

Jan. 6, 2004

14-17 April. Jacob and I cannot attend this, alas. Laura http://www.accu.org/conference/ ------- Forwarded Message Replied: "Andy Robinson" <andy(a)reportlab.com> Return-Path: andy(a)reportlab.com From: "Andy Robinson" <andy(a)reportlab.com> To: "Laura Creighton" <lac(a)strakt.com> Subject: RE: ACCU 2004 Date: Fri, 19 Dec 2003 09:59:46 -0000 We're trying to have a day on all the 'new implementations of python' at ACCU - Jython, .NET, PyPy, Psyco, Stackless etc. It … [View More]

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WhatOS
by Christian Tismer Jan. 5, 2004

Jan. 5, 2004

Hi friends, first of all, a happy new year! Then, Giorgio pointed me to a website today. It makes a really gorgeous claim: """ WhatOS is a free open source embedded system development solution. It provides a complete set of tools for creating high-quality, reliable embedded systems. These include: a real-time operating system (RTOS) generator, a simulator for testing and debugging generated systems, and tools for interacting with systems remotely after they have been embedded. """ So I … [View More]

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Re: [pypy-dev] Pie-thon benchmark
by Patrick Maupin Jan. 4, 2004

Jan. 4, 2004

A happy new year to all involved! I will be flying back to Texas tomorrow, and hopefully caught up on work enough to try to start contributing a little again by next weekend. Debugging these sorts of benchmarks is a task which, as Alex mentioned, he and I actually made some headway on, so this has given me a (possibly quite false) sense of confidence about my understanding of a few sections of the PyPy code. I'll check back later in the week to figure out what I should consider working on, … [View More]but I think there are plenty of little bugs and code cleanup tasks available for my amusement. In addition to those tasks, I have been thinking about the dict object implementation. If no one else is working on this, I might have a go at creating one which is somewhat more efficient. Pat > -----Original Message----- > From: Alex Martelli [mailto:aleaxit@yahoo.com] > Sent: Friday, January 2, 2004 09:42 AM > To: 'Seo Sanghyeon', pypy-dev(a)codespeak.net > Subject: Re: [pypy-dev] Pie-thon benchmark > > On Wednesday 31 December 2003 09:39 pm, Seo Sanghyeon wrote: > > Happy new year, pypy-dev! > > And a happy new year to you! > > I think it's quite important at this stage to have pypy run as much benchmark > and testing CPython code as feasible (I spent the Amsterdam sprint mostly > working on that, mostly pair programming with Pat Maupin, and Laura and > Jacob also worked a lot on adding and fixing built-ins -- as a result we now > have versions of pystone and of the CPython unit tests for built-in types and > functions running under pypy, though quite a bit of the unit tests has had to > be commented out to get there -- plenty of things we can't fix, or can't fix > yet / right now, or, like complex numbers, don't really want to spend lots > and lots of energy at this stage). So, I heartily approve of your work on > pie-thon! > > > For PyPy, I used `time python py.py -S b?.py'. To make relative > > import work I prepended `PYTHONPATH=.' for b4.py and b6.py. > > > > b0.py: error __new__() takes exactly 4 arguments (1 given) > > Hmmm -- guess we gotta work on making some of __new__'s args > optional! > > > b1.py: error maximum recursion depth exceeded > > (No hypothesis here). > > > b2.py: real 1m25.725s (250x slow) > > Wow -- more commonly the speed ratio is observed to be in the > thousands (e.g. the fastest laptop at the sprint got 3 pystones/sec > in pypy, vs I believe 50,000 pystones/sec in CPython 2.3.3). > > > b3.py: error __new__ multimethod got a non-wrapped argument > > Ouch -- this is sure to be a serious coding error somewhere in pypy. > > > b4.py: error (this one imports and uses b0.py) > > b5.py: error global name complex is not defined > > Right, we haven't worked on complex... there's some code for complex > but no work has been spent making it work as a builtin type, AFAIK. > > > b6.py: error unbound method must be called with > > instance as first argument > > > > More comments on b6.py: it took 22 minutes(!) to crash. It printed > > 42, 1000041, 999999, 49999950000, and finally crashed at > > `d = dict.fromkeys(xrange(1000000))'. > > Ah, yes, this is a known issue -- we can't yet expose classmethods > from built-in types. We do have classmethods, for user-coded types, > we just haven't yet gotten around to installing fromkeys as a classmethod > into builtin type dict -- so it looks like a normal method instead. > > > Alex > > _______________________________________________ > pypy-dev(a)codespeak.net > http://codespeak.net/mailman/listinfo/pypy-dev > [View Less]

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Pie-thon benchmark
by Seo Sanghyeon Jan. 2, 2004

Jan. 2, 2004

Happy new year, pypy-dev! Guido announced Pie-thon benchmark. http://mail.python.org/pipermail/python-dev/2003-December/041527.html I tried to run it against PyPy revision 2706. First, here is Python 2.3 performance on my system, measured by `make times'. b0.py: real 0m2.720s b1.py: real 0m1.069s b2.py: real 0m0.343s b3.py: real 0m2.137s b4.py: real 0m0.709s b5.py: real 0m2.100s b6.py: real 0m1.903s For PyPy, I used `time python py.py -S b?.py'. To make relative import … [View More]

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