Mailman 3 January 2011 - pypy-dev

"OSError: [Errno 10] No child processes"
by Arnd Rechenburg Jan. 13, 2011

Jan. 13, 2011

Hi, Could someone help me to avoid the following exception? Exception "OSError: [Errno 10] No child processes" in method __del__ of <closed file '<fdopen>', mode 'r' at 0x00002b58059f05f8> ignored Thanks in advance, Arnd

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Re: [pypy-dev] Continuations and sandboxing
by Laura Creighton Jan. 11, 2011

Jan. 11, 2011

When I was last in the USA, I met Alessandro Warth, who now works for the Viewpoints Research Institute and whose Phd thesis which you can get on this page: http://www.tinlizzie.org/~awarth/ is about experiments in computer languages to do the sorts of things that you are interested in. He had a neat implementation of something he called 'worlds' to show off, and gave a talk about it. It's chapter 4 of his thesis. It was neat, but I got the distinct impression that the price he was paying for … [View More]

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Continuations and sandboxing
by Nathanael D. Jones Jan. 11, 2011

Jan. 11, 2011

Hi folks, I've got a challenging set of requirements that I think PyPy may be able to meet, but I'd like to get some feedback before I jump in. I'm developing a collaboratively edited game. It's not a MUD, but similar in concept, and also text based in nature. HogwartsLive.com and lotgd.ne <http://www.lotgd.net/home.php?>t are examples of the genre I'm going for. I believe if a game of that genre makes user modification simple and rewarding enough, it could be self-sustaining and grow … [View More]

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Calling into PyPy from multi-threaded C++
by Duncan Grisby Jan. 11, 2011

Jan. 11, 2011

Hi, I've been experimenting with using PyPy in a big application, and the initial results are very encouraging. One part of the application is a fairly complex compiler, and that goes 2.5 times faster with PyPy than with Python 2.6, which is a very positive result. The compiler is the one CPU-intensive bit of the system that I could easily isolate to test with PyPy. All the rest of it consists of a number of servers connected together using omniORB (which I maintain). omniORBpy integrates the … [View More]

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good by swap of death
by Daniel Poelzleithner Jan. 11, 2011

Jan. 11, 2011

hi, as I'm surly not the only one having sometimes memory problems when translating pypy. Slowly getting bitten by the swap of death, not registering anything until the desktop stops and rescuing is a very slow process (yes, i have a special root login with /bin/sh shell and memlockd...). I was just able to fix the problem with ulatencyd [1] and as I think translating pypy is a real usecase I would be glad having some feedback. I was quite surprised that after a simple memleak emulator got … [View More]

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Re: [pypy-dev] [pypy-svn] pypy jit-longlong: Intermediate check-in, breaks everything by exposing cases of
by Maciej Fijalkowski Jan. 10, 2011

Jan. 10, 2011

For what is worth I'm happy with making "rething regalloc API" a sprint topic. So far I failed to come up with something more reasonable. Cheers, fijal On Mon, Jan 10, 2011 at 12:33 AM, arigo <commits-noreply(a)bitbucket.org> wrote: > Author: Armin Rigo <arigo(a)tunes.org> > Branch: jit-longlong > Changeset: r40545:9a472ddf9893 > Date: 2011-01-09 23:33 +0100 > http://bitbucket.org/pypy/pypy/changeset/9a472ddf9893/ > > Log: Intermediate check-in, … [View More]breaks everything by exposing cases of > constant arguments that are not correctly handled so far. /me is > again annoyed by the API of regalloc.py, which seems to be very > reasonable, until we hit these cases. > > diff --git a/pypy/jit/backend/x86/assembler.py b/pypy/jit/backend/x86/assembler.py > --- a/pypy/jit/backend/x86/assembler.py > +++ b/pypy/jit/backend/x86/assembler.py > @@ -1174,6 +1174,13 @@ > self.mc.SBB_rr(resloc.value, resloc.value) > self.mc.NEG_r(resloc.value) > > + def genop_llong_lt(self, op, arglocs, resloc): > + # XXX just a special case for now: "x < 0" > + loc1, = arglocs > + self.mc.PMOVMSKB_rx(resloc.value, loc1.value) > + self.mc.SHR_ri(resloc.value, 7) > + self.mc.AND_ri(resloc.value, 1) > + > def genop_new_with_vtable(self, op, arglocs, result_loc): > assert result_loc is eax > loc_vtable = arglocs[-1] > @@ -1784,6 +1791,7 @@ > if isinstance(op.getdescr(), LongLongCallDescr): > self.mc.MOV_br(resloc.value, eax.value) # long long > self.mc.MOV_br(resloc.value + 4, edx.value) > + # XXX should ideally not move the result on the stack > else: > self.mc.FSTP_b(resloc.value) # float return > elif size == WORD: > > diff --git a/pypy/jit/codewriter/jtransform.py b/pypy/jit/codewriter/jtransform.py > --- a/pypy/jit/codewriter/jtransform.py > +++ b/pypy/jit/codewriter/jtransform.py > @@ -894,7 +894,8 @@ > args = op.args > op1 = self.prepare_builtin_call(op, "llong_%s", args) > op2 = self._handle_oopspec_call(op1, args, > - EffectInfo.OS_LLONG_%s) > + EffectInfo.OS_LLONG_%s, > + EffectInfo.EF_PURE) > return op2 > ''' % (_op, _oopspec.lower(), _oopspec)).compile() > > @@ -1273,7 +1274,7 @@ > > def _handle_oopspec_call(self, op, args, oopspecindex, extraeffect=None): > calldescr = self.callcontrol.getcalldescr(op, oopspecindex) > - if extraeffect: > + if extraeffect is not None: > calldescr.get_extra_info().extraeffect = extraeffect > if isinstance(op.args[0].value, str): > pass # for tests only > > diff --git a/pypy/jit/backend/x86/regalloc.py b/pypy/jit/backend/x86/regalloc.py > --- a/pypy/jit/backend/x86/regalloc.py > +++ b/pypy/jit/backend/x86/regalloc.py > @@ -653,6 +653,22 @@ > self.PerformLLong(op, [loc1, loc2, loc3], loc0) > self.xrm.possibly_free_vars(args) > > + def _maybe_consider_llong_lt(self, op): > + # XXX just a special case for now > + from pypy.rlib.longlong2float import longlong2float > + box = op.getarg(2) > + if not isinstance(box, ConstFloat): > + return False > + if not (box.value == longlong2float(r_longlong(0))): > + return False > + # "x < 0" > + box = op.getarg(1) > + loc1 = self.xrm.make_sure_var_in_reg(box, imm_fine=False) > + loc0 = self.rm.force_allocate_reg(op.result) > + self.PerformLLong(op, [loc1], loc0) > + self.xrm.possibly_free_var(box) > + return True > + > def _consider_llong_to_int(self, op): > # accept an argument in a xmm register or in the stack > loc1 = self.xrm.loc(op.getarg(1)) > @@ -769,6 +785,9 @@ > if (oopspecindex == EffectInfo.OS_LLONG_EQ or > oopspecindex == EffectInfo.OS_LLONG_NE): > return self._consider_llong_cmp_xx(op) > + if oopspecindex == EffectInfo.OS_LLONG_LT: > + if self._maybe_consider_llong_lt(op): > + return > # > self._consider_call(op) > > _______________________________________________ > pypy-svn mailing list > pypy-svn(a)codespeak.net > http://codespeak.net/mailman/listinfo/pypy-svn > [View Less]

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psycopg2 on PyPy
by Alex Gaynor Jan. 6, 2011

Jan. 6, 2011

Hi all, For the past week and a half I've been working on an RPython implementation of psycopg2 (the most popular database adapter for PostgreSQL). I'm happy to announce that at this point it is passing all the DB-API2.0 tests, and all the psycopg2 tests I converted into AppTests (most of them I think), it also passes the entire DJango test suite (which makes extensive use of the database). The downside is that running the full Django test suite on top of pypy with it is still about 20% … [View More]

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pypy GC on large objects Re: funding/popularity?
by René Dudfield Jan. 4, 2011

Jan. 4, 2011

Hello, I think this is a case where the object returned by ctypes.create_string_buffer() could use a correct __sizeof__ method return value. If pypy supported that, then the GC's could support extensions, and 'opaque' data structures in C too a little more nicely. I think ctypes was started before __sizeof__ became available... so it seems many of it's methods are not updated yet. __sizeof__ is not mandatory, so many extensions have not been updated to support it yet. cheers, On Thu, Dec … [View More]

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PyPy is now available in Fedora
by David Malcolm Jan. 4, 2011

Jan. 4, 2011

I've packaged pypy in RPM form for the Fedora distribution [1] - RPM packages are now built in the development branch targeting the next major release (Fedora 15). So it should now be possible for Fedora users to type # yum install pypy and obtain a precompiled /usr/bin/pypy executable via an rpm package, consisting of the JIT-enabled pypy, with all standard settings, without needing to do the full build themselves. I'll do my best to keep these "downstream" packages promptly updated as … [View More]

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Wing Sit invited you to Dropbox
by Dropbox Jan. 3, 2011

Jan. 3, 2011

Wing Sit wants you to use Dropbox to sync and share files online and across computers. Get started here: http://www.dropbox.com/link/20.eHuq1oJQCM/NjU2NTA1ODEwNw?src=referrals_bulk2 - The Dropbox Team ____________________________________________________ To stop receiving invites from Dropbox, please go to http://www.dropbox.com/bl/4b1a4ffd25d4/pypy-dev%40codespeak.net

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