Mailman 3 April 2011 - pypy-dev

Licensing of PyPy Speed Logo Artwork
by Samuel Reis April 11, 2011

April 11, 2011

Hello everybody. As fijal asked me to do, I will now clarify the licensing of the PyPy Logo Artwork that was provided by me and is currently in use at speed.pypy.org. Herewith I declare this artwork to be subject to the terms of the Creative Commons Attribution-Share Alike license (http://creativecommons.org/licenses/by-sa/3.0/). I view the aspect of attribution to be fulfilled by the mention of my name in the LICENSE file of the PyPy source distribution. I wish you guys good progress and success, so that we all can see a compliant Python that is gaining more and more speed. Greetings, Samuel

1 0

benchunix.py fixes
by pypy＠pocketnix.org April 11, 2011

April 11, 2011

Hi bench-unix.py did not work so i did q quick repair job and enhancement on a small bit of the code, included as 3 patches below. i seem to recall someone mentioning that this was depreciated however as a new user it was tempting to use it as it was the first thing i saw and is a nice quick test for getting a rough guide of the relative performance of several versions of pypy i have generated currently contemplating a rewrite of the code so let me know if there is something better or if someone else is working on something ---------------------------------------------------- Add newer python implementations and benchmark system default interpreter --- a/pypy/translator/goal/bench-unix.py +++ b/pypy/translator/goal/bench-unix.py @@ -102,7 +102,7 @@ ref_rich, ref_stone = None, None # for exe in '/usr/local/bin/python2.5 python2.4 python2.3'.split(): - for exe in 'python2.4 python2.3'.split(): + for exe in 'python2.7 python2.6 python2.4 python2.3 python'.split(): v = os.popen(exe + ' -c "import sys;print sys.version.split()[0]"').rea if not v: continue ------------------------------------------------------------------------------ Discard missing interpreters --- a/pypy/translator/goal/bench-unix.py +++ b/pypy/translator/goal/bench-unix.py @@ -102,7 +102,13 @@ ref_rich, ref_stone = None, None # for exe in '/usr/local/bin/python2.5 python2.4 python2.3'.split(): - for exe in 'python2.4 python2.3'.split(): + for exe in 'python2.7 python2.6 python2.4 python2.3 python'.split(): + path = os.environ.get("PATH", "") + path = [x + os.sep + exe for x in path.split(os.pathsep) if exe in os.l + if len(path) > 0: + exe = path[0] + else: + continue v = os.popen(exe + ' -c "import sys;print sys.version.split()[0]"').rea if not v: continue ------------------------------------------------------------------------------ Fix off by one --- a/pypy/translator/goal/bench-unix.py +++ b/pypy/translator/goal/bench-unix.py @@ -85,7 +85,7 @@ if os.path.isdir(exe) or exe.endswith('.jar'): continue try: - exes.append( (exe.split('-')[2], exe) ) + exes.append( (exe.split('-')[1], exe) ) except: pass #skip filenames without version number exes.sort() ------------------------------------------------------------------------------

1 0

Re: [pypy-dev] Gothenburg sprint and sprint fund
by Laura Creighton April 10, 2011

April 10, 2011

In a message of Sat, 09 Apr 2011 14:27:49 +0200, Bartosz SKOWRON writes: >On Sat, Apr 9, 2011 at 2:05 PM, Laura Creighton <lac(a)openend.se> wrote: > >> And I am getting a price of 39,99 Euros out (on the 23rd) >> and 9,98 if you leave on the 3rd. =C2=A059,99 if you leave on the 2nd. >> >> So yes, much cheaper. =C2=A0Thank you. > >:) I'm glad I could help. Wish to come to the sprint either but can't >make it for this date :( That's really too bad. Are you going to Europython? Laura

3 2

jit.backend.test.test_random
by Matthew Woodcraft April 10, 2011

April 10, 2011

I found that pypy.jit.backend.test.test_random is failing if I pass --backend=x86 The following patch fixes it for me: --- a/pypy/jit/backend/test/test_random.py +++ b/pypy/jit/backend/test/test_random.py @@ -717,6 +717,7 @@ def test_random_function(BuilderClass=OperationBuilder): r = Random() cpu = get_cpu() + cpu.setup_once() if pytest.config.option.repeat == -1: while 1: check_random_function(cpu, BuilderClass, r) -M-

2 1

Thoughts on multithreading in PyPy
by Jacob Hallén April 10, 2011

April 10, 2011

I have been thinking about the multithreading problem in PyPy for a while and I have come up with an idea. I'd like to have feedback from people who know the codebase well. The first and hardest step is to change the PyPy runtime so that it can run multiple threads at the same time. To simplify matters, we allocate all external resources to one thread to start with. We assume that other threads don't use them. Neither do they call into extension modules that do messy things. Whenever we spawn a new thread, we give it its own object space and its own instance of the memory manager/garbage collector. Having gotten this far, we would have N threads that could run in parallell. Since they have no interaction with each other and no contetion for resources, they would require no locking mechanism. The thread with the external resources would still be dependent on the GIL, but the other ones wouldn't even see it. This setup would of course be utterly useless, because all but one of the threads would have no means of comunicationg their results to the world. So, in a second step, we provide for special data types that can be shared between threads. These would typically be allocated in non-movable memory, to avoid the complexity of garbage collection of memory with shared use. You can make simple fifo structures for communication between the threads and complex structures with advanced algorithms for dealing with shared access. In a third step, you may relax the requirement that the first thread owns all resources. You should be able to hand them out in a controlled manner. For instance, you may want to spawn a thread for each socket connection and have that thread deal with all the communication with the socket. Now I wonder about the feasability of the first step. How much global state would have to be wrapped in per-tread objects and how hard would that be? What other obstacles would there be to doing this change? I guess there is a complication with requesting memory from the kernel and returning memory, but I think that could be solved in more or less elegant ways. Jacob Hallén

5 6

Re: [pypy-dev] Gothenburg sprint and sprint fund
by Laura Creighton April 9, 2011

April 9, 2011

In a message of Sat, 09 Apr 2011 13:52:13 +0200, Laura Creighton writes: re: >>This is with a stop in London Stansted. However now I found a direct >>connection from Dublin to Stockholm Skavsta for <something my >mailer didn't like-- laura > by RyanAir. It's >>really cheap. And I am getting a price of 39,99 Euros out (on the 23rd) and 9,98 if you leave on the 3rd. 59,99 if you leave on the 2nd. So yes, much cheaper. Thank you. Laura

2 1

Re: [pypy-dev] Gothenburg sprint and sprint fund
by Laura Creighton April 9, 2011

April 9, 2011

In a message of Sat, 09 Apr 2011 13:19:32 +0200, Bartosz SKOWRON writes: >On Sat, Apr 9, 2011 at 1:17 PM, Laura Creighton <lac(a)openend.se> wrote: > >> What did you find? =C2=A0Because both of the Gothenburg airports claim >to >> have no connections to Ireland whatsoever. > >This is with a stop in London Stansted. However now I found a direct >connection from Dublin to Stockholm Skavsta for <something my mailer didn't like-- laura > by RyanAir. It's >really cheap. The Skavsta Airport really isn't in Stockholm -- it's 90 minutes away by bus. What is is close to is Nyköping, which is 7 km away. And you can catch a train to Göteborg from Nyköping. So this looks like a lot cheaper. Thank you. http://www.skavsta.se/sv/content/2/38/t%C3%A5g.html says that it costs 200 SEK to get to the Nyköping train station from Skavska airport by taxi, or 20 SEK if you take the local bus 515 or 715 Laura

1 0

Re: [pypy-dev] Gothenburg sprint and sprint fund
by Laura Creighton April 9, 2011

April 9, 2011

What did you find? Because both of the Gothenburg airports claim to have no connections to Ireland whatsoever. Laura, who would be very pleasantly surprised if this is wrong.

2 1

Gothenburg sprint and sprint fund
by Romain Guillebert April 9, 2011

April 9, 2011

Hi I would like to attends to the sprint at the end of this month but I can afford the plane, the train (I come from Ireland and there is no direct plane between Dublin and Gothenburg) and the accomodation so I would like to know if I can get help from the PyPy sprint fund. >From what I previewed it would cost : - 17€ * 2 for the bus between my town and Dublin's airport - 397.75€ for the plane between Dublin and Copenhagen (It's really expensive in my opinion but I can't find something cheaper) - 394 SEK * 2 for the train between Copenhagen and Gothenburg I plan to stay from the 23rd to the 1st, I will sleep at SGS Veckobostader, I don't know if I can share a room with someone but I would stay from the 23rd to the 1st. I can handle some of it but I won't be able to make it without help. Thanks Romain

2 1

PyPy in the benchmarks game - yes or no?
by Isaac Gouy April 8, 2011

April 8, 2011

Hi A simple yes / no question. Do you want PyPy to be shown in the benchmarks game or not? Please consider the question amongst yourselves and then let me know. Of course, I'll make up my own mind but at least I'll be able to take your wishes into account. best wishes, Isaac

12 37