Mailman 3 June 2013 - pypy-dev

Re: [pypy-dev] pypy-dev Digest, Vol 26, Issue 5
by cuitao June 5, 2013

June 5, 2013

hello, can you consider adding the blist support in pypy ? blist: a list-like type with better asymptotic performance and similar performance on small lists > From: pypy-dev-request(a)python.org > Subject: pypy-dev Digest, Vol 26, Issue 5 > To: pypy-dev(a)python.org > Date: Tue, 4 Jun 2013 12:00:02 +0200 > > Send pypy-dev mailing list submissions to > pypy-dev(a)python.org > > To subscribe or unsubscribe via the World Wide Web, visit > http://mail.python.org/… [View More]mailman/listinfo/pypy-dev > or, via email, send a message with subject or body 'help' to > pypy-dev-request(a)python.org > > You can reach the person managing the list at > pypy-dev-owner(a)python.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of pypy-dev digest..." > > > Today's Topics: > > 1. JIT slowdown on creating types (Vasily Evseenko) > 2. Best FFI interface (Timothy Baldridge) > 3. Re: Best FFI interface (Armin Rigo) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Mon, 03 Jun 2013 14:08:57 +0400 > From: Vasily Evseenko <svpcom(a)gmail.com> > To: PyPy Developer Mailing List <pypy-dev(a)python.org> > Subject: [pypy-dev] JIT slowdown on creating types > Message-ID: <51AC6B39.3060703(a)gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > Hi, > > When i dynamically create new type (for example classes nested to > functions) I've got linear code slowdown: > > ----- > def test(): > obj = type('foo' , (object,), {'attr1': 0})() > > for i in xrange(1000000): > obj.attr1 += 1 > > > for j in xrange(100): > ts = time.time() > test() > print time.time() - ts > ------ > # pypy ./test.py > 0.0529999732971 > 0.0519850254059 > 0.0545370578766 > 0.0622198581696 > ... > 0.678023099899 > 0.686202049255 > 0.68180680275 > 0.703506946564 > > [PyPy 2.0.2 with GCC 4.4.5] on linux2 > > Is it bug or a feature? > > > ------------------------------ > > Message: 2 > Date: Mon, 3 Jun 2013 12:55:20 -0600 > From: Timothy Baldridge <tbaldridge(a)gmail.com> > To: PyPy Developer Mailing List <pypy-dev(a)python.org> > Subject: [pypy-dev] Best FFI interface > Message-ID: > <CAL36E+sKEFAugw9FJZE-9A+aHsm5fj-p6GNPpvYmx=Grgb2QRg(a)mail.gmail.com> > Content-Type: text/plain; charset="iso-8859-1" > > I'm attempting to integrate my rpython interpreter with libgmp, and I'm a > bit confused in how to call the library from my rpython code. it seems we > have three ways? > > rlib.libffi (deprecated?) > rlib.jit_libffi > rlib.clibffi > > Which of these is prefered for a from-scratch rpython interpreter? In > addition, I've looked at the code for each of these and it's not terribly > clear how to go about something like this (in psudeocode): > > mpz = malloc(sizeof(size_t) * 3) > __gmpz_init_set_si(mpz, (signed long)val) > > the struct passed around in mpz can be opaque to the interpreter as it will > only ever be access via gmp functions. > > Thanks for the help, > > Timothy Baldridge > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: <http://mail.python.org/pipermail/pypy-dev/attachments/20130603/1f7dd168/att…> > > ------------------------------ > > Message: 3 > Date: Mon, 3 Jun 2013 22:11:03 +0200 > From: Armin Rigo <arigo(a)tunes.org> > To: Timothy Baldridge <tbaldridge(a)gmail.com> > Cc: PyPy Developer Mailing List <pypy-dev(a)python.org> > Subject: Re: [pypy-dev] Best FFI interface > Message-ID: > <CAMSv6X2gGLdq-odOfk-CtsGVqp04mpf1PwdDrmQwaq8hA5hHTA(a)mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > Hi Timothy, > > On Mon, Jun 3, 2013 at 8:55 PM, Timothy Baldridge <tbaldridge(a)gmail.com> wrote: > > I'm attempting to integrate my rpython interpreter with libgmp, and I'm a > > bit confused in how to call the library from my rpython code. it seems we > > have three ways? > > > > rlib.libffi (deprecated?) > > rlib.jit_libffi > > rlib.clibffi > > You're looking at the wrong place. You should instead look at > rpython.rtyper.lltypesystem.rffi, which is minimally documented in > pypy/doc/rffi.rst. What you list above are ways to invoke libffi, > which is a C library to do dynamic calls. (Additionally, if the goal > is only to have ints of unlimited size in RPython, there is > rpython.rlib.rbigint.) > > > A bient?t, > > Armin. > > > ------------------------------ > > Subject: Digest Footer > > _______________________________________________ > pypy-dev mailing list > pypy-dev(a)python.org > http://mail.python.org/mailman/listinfo/pypy-dev > > > ------------------------------ > > End of pypy-dev Digest, Vol 26, Issue 5 > *************************************** [View Less]

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Measure time inside of JIT'ed code
by Vasily Evseenko June 5, 2013

June 5, 2013

Hi, I want to profile my program and calculate which portion of code is JIT'ed and what it interpreted. Is there any way to dump into PYPYLOG entries when JIT'ed code sections running? I found that only JIT tracing and generation events are logged.

2 1

fastjson module
by Maciej Fijalkowski June 5, 2013

June 5, 2013

Hi anto if this is for speeding up json, call the module _json, as CPython does (I don't care if the API is similar or not, as long as it's used by json lib) If it's not for json, then it does not belong in PyPy IMO. Cheers, fijal

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Best FFI interface
by Timothy Baldridge June 3, 2013

June 3, 2013

I'm attempting to integrate my rpython interpreter with libgmp, and I'm a bit confused in how to call the library from my rpython code. it seems we have three ways? rlib.libffi (deprecated?) rlib.jit_libffi rlib.clibffi Which of these is prefered for a from-scratch rpython interpreter? In addition, I've looked at the code for each of these and it's not terribly clear how to go about something like this (in psudeocode): mpz = malloc(sizeof(size_t) * 3) __gmpz_init_set_si(mpz, (signed long)val)… [View More]

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cpython changed _sre between 2.7.3 to 2.7.4, now intmask(pattern) is negative
by Matti Picus June 3, 2013

June 3, 2013

Running own tests on win32 gives many errors in the _sre module: rlib/rsre/rsre_core.py:111: AssertionError which is checking that all values of the pattern are >=0 Here is one of many such failures: http://buildbot.pypy.org/summary/longrepr?testname=TestMatch.%28%29.test_re… It turns out that the buildbot has been updated to use python 2.7.4, and in cpython's changeset c67b7e0c818a they changed the type of SRE_CODE from int to long. We demand the pattern values be int via a call to … [View More]

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pypy-2.0 package issue
by David Roid June 2, 2013

June 2, 2013

Greetings, As prebuilt pypy Linux binaries only available for Ubuntu, I'm following this guide (http://pypy.org/download.html) to build pypy-2.0 from source for CentOS 5.8 x64. The translation was successful with pypy-c generated, but subsequent packaging went wrong with following error: <snip> /root/pypy-2.0-src/lib_pypy/__pycache__/_cffi__gb0f282f4xe752c2be.c: In function ‘_cffi_const_SQLITE_CREATE_VTABLE’: /root/pypy-2.0-src/lib_pypy/__pycache__/_cffi__gb0f282f4xe752c2be.c:499: … [View More]

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why does jit.backend.x86.test.test_fficall crash python on win32?
by Matti Picus June 2, 2013

June 2, 2013

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