Mailman 3 September 2014 - pypy-dev

use as benchmark pypy vs python if you please
by Dima Tisnek 13 Sep '15

13 Sep '15

Attached is n-queens solver (pardon my naive algorithm), it runs: python 2.7.6: 17s pypy 2.4.0 alpha: 23s same nojit: 32s I've tried similar-looking algorithm for another problem before, and has similar results -- somehow pypy was slower. feel free to investigate / tweak or even use on speed.pypy.org

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Paetron .. more ways to get micropayments
by Laura Creighton 30 Sep '14

30 Sep '14

Two friends of mine is using this to support mobile game development. After 2 weeks of using it, they have hit the 100 USD a month milestone (so the TB proboards forum is about to be ad-free). Read about the service here. http://www.patreon.com/faq I thought it might be something we are interested in. You can see how they are using it here: http://www.patreon.com/TreseBrothers Laura

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PyPy Warsaw Sprint (October 21-25th, 2014)
by Armin Rigo 30 Sep '14

30 Sep '14

Hi all, Here's the announcement (below) for the next PyPy sprint, in one month's time in Warsaw. It will take place just after the Polish PyCon Pl'14 conference, which is also in Poland, although not in Warsaw. See http://pl.pycon.org/2014/en/ in case you're interested. (There is of course no need to attend one in order to attend the other.) Armin ===================================================================== PyPy Warsaw Sprint (October 21-25th, 2014) ===================================================================== The next PyPy sprint will be in Warsaw, Poland for the first time. This is a fully public sprint. PyPy sprints are a very good way to get into PyPy development and no prior PyPy knowledge is necessary. ------------------------------ Goals and topics of the sprint ------------------------------ For newcomers: * Bring your application or library and we'll help you port it to PyPy (if needed), benchmark and profile. * The easiest way to start hacking on PyPy is to write support for some missing Python 3.3 functionality, or to work on numpy. We'll also work on more specific topics, depending on who is here and what their interest is, like some missing GC/JIT optimizations, software transactional memory, etc. ----------- Exact times ----------- The work days should be October 21st - 25th, 2014. There might be a day or an afternoon of break in the middle. We'll typically start at 10:00 in the morning. ------------ Location ------------ The sprint will happen within a room of Warsaw University. The address is Pasteura 5 (which is a form of "Pasteur street"), dept. of Physics, room 450. The person of contact is Maciej Fijalkowski. -------------- Registration -------------- If you want to attend, please register by adding yourself to the "people.txt" file in Mercurial:: https://bitbucket.org/pypy/extradoc/ https://bitbucket.org/pypy/extradoc/raw/extradoc/sprintinfo/warsaw-2014 or on the pypy-dev mailing list if you do not yet have check-in rights:: http://mail.python.org/mailman/listinfo/pypy-dev Remember that Poland is a regular Schengen zone EU country, with main-EU-zone power adapters.

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JITing non looping interpreted functions
by Timothy Baldridge 29 Sep '14

29 Sep '14

Let's say I have a bit of interpreter level code code that does something as simple as reduce: acc = None for x in range(10000): acc = interpret(func, wrap(x)) return acc The problem I seem to be hitting is that since there isn't a loop inside the code (in the func variable) interpret is running, I don't seem to be getting an efficient trace. In essence I want the trace to start at the call to interpret, and inline enough of the above loop to end the trace at the next call to interpret. What's the best way to go about doing something like that? Thanks, Tim

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Problem with PyPy3 and lxml
by Eugenio Cano-Manuel Mendoza 27 Sep '14

27 Sep '14

Hello, I'm currently trying to install lxml inside a virtual environment using PyPy3 (pypy3 2.3.1). During the compilation part, lxml fails to build. I asked on #pypy and they pointed me to lxml-cffi but it fails to build as well (error message here http://pastebin.com/LUw3FrDK). It works without a problem using PyPy 2.2.*, but it doesn't have Python 3 support. Cheers, Eugenio

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What is ABORT_ESCAPE?
by Timothy Baldridge 26 Sep '14

26 Sep '14

I have a JIT I've been working on for a few days now, and initial results were awesome, the JIT log showed just a few assembly ops to execute each iteration of a simple "count to 10000" loop. However, then I changed something and the traces stopped being generated. I hooked up the JIT hooks and noticed that about every 1000 iterations I'd get "ABORT_ESCAPE". After a bit more printing I get this: https://gist.githubusercontent.com/halgari/3cd3cd10f359f2103b89/raw/d8f335f… Now if I disable virtualizables, everything works fine. What should I be looking for to troubleshoot this? Thanks, Tim

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PyPy 2.4.0 final prerelease now available
by Matti Picus 26 Sep '14

26 Sep '14

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Re: [pypy-dev] Pypy3 supporting Python 3.3
by Ram Rachum 24 Sep '14

24 Sep '14

Is this still broken? (I'm waiting for Windows binaries of Py3.3 development builds.) On Fri, Sep 19, 2014 at 11:35 AM, Matti Picus <matti.picus(a)gmail.com> wrote: > Something is broken, I just tried to debug and wrote about it on IRC > https://botbot.me/freenode/pypy/ > It seems to be in the ffi mechanism, but I don't have more time today to > play > > > > On 19/09/2014 11:32 AM, Ram Rachum wrote: > > So no Windows one? > > On Fri, Sep 19, 2014 at 8:11 AM, Armin Rigo <arigo(a)tunes.org> wrote: > >> Hi Ram, >> >> On 18 September 2014 17:41, Matti Picus <matti.picus(a)gmail.com> wrote: >> > Sorry, the 3.3 is a typo, it should read 3.2.5 >> >> Some in-progress betas are available from: >> >> http://buildbot.pypy.org/nightly/py3.3/ >> >> Maybe someone working on it can trigger a further, more up-to-date >> build; most of them happen to be "nojit". >> >> >> A bientôt, >> >> Armin >> > > >

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What is the max heap size pypy can manage well?
by Gelin Yan 23 Sep '14

23 Sep '14

Hi All I am interested in using pypy for production now. Due to I need to handle a large number of concurrent connections (almost 500K). I want to know the max heap that pypy can manage. As I know V8 still have a limit on 1.4G heap size, I am not sure whether pypy has a similar limitation like that. Thanks. Regards gelin yan

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PyPy 2.4.0 has been released
by Matti Picus 23 Sep '14

23 Sep '14

Thanks to bug reporters and fixers, we have come out of the beta cycle with a much better product, a brand new, shiny PyPy 2.4.0, available now. http://morepypy.blogspot.com/2014/09/pypy-240-released-9-days-left-in.html http://doc.pypy.org/en/latest/release-2.4.0.html Please consider helping out in the final days of our funding drive, only 9 days left to obtain a matching donation from the PSF. Matti

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