Mailman 3 March 2013 - pypy-dev

instruction cache and data cache on ARM
by Maciej Fijalkowski March 8, 2013

March 8, 2013

Looking at random stuff I found this: http://luajit.org/download/v2.0.1_hotfix1.patch which means ARM might have separate instruction cache and data cache that don't sync to each other. Can someone confirm/deny that we have to flush them? Cheers, fijal

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Fwd: test_all.py can't recognize has multi inherited classes
by James Lan March 8, 2013

March 8, 2013

forgot to send to mailing list ---------- Forwarded message ---------- From: James Lan <jameslan(a)gmail.com> Date: Wed, Mar 6, 2013 at 2:39 PM Subject: Re: [pypy-dev] test_all.py can't recognize has multi inherited classes To: Ronny Pfannschmidt <Ronny.Pfannschmidt(a)gmx.de> Hi, Is there any update on this? Do I need to file a bug? Thanks, James On Fri, Feb 15, 2013 at 12:01 AM, Ronny Pfannschmidt < Ronny.Pfannschmidt(a)gmx.de> wrote: > On 02/15/2013 08:55 AM, … [View More]Maciej Fijalkowski wrote: > >> On Fri, Feb 15, 2013 at 9:45 AM, Ronny Pfannschmidt >> <Ronny.Pfannschmidt(a)gmx.de> wrote: >> >>> i confirmed the issue - its in the included pytest and its fixed upstream >>> >>> its going to be fixed in the pytest branch of pypy later >>> >> >> Can't you fix it on default? >> > > i need to investigate the effects of the update first > > > >> >>> >>> >>> >>> On 02/15/2013 08:34 AM, Ronny Pfannschmidt wrote: >>> >>>> >>>> Hi James, >>>> >>>> >>>> Interesting find, >>>> >>>> i can replicate and i don't yet see how it happens, >>>> because the code pytest uses does walk the mro to find tests in parent >>>> classes >>>> >>>> i will report back once i figured whats wrong >>>> >>>> -- Ronny >>>> >>>> >>>> On 02/15/2013 08:14 AM, James Lan wrote: >>>> >>>>> >>>>> Hi All, >>>>> >>>>> I tried to run test cases for jvm backend by the following command, >>>>> >>>>> >>>>> pypy pypy/test_all.py rpython/translator/jvm/test >>>>> >>>>> >>>>> but what I got was 10 tests defined in >>>>> rpython/translator/jvm/test/**test_backendopt.py although there are >>>>> two >>>>> dozens of test files in that directory. >>>>> >>>>> After experiment, I found that it failed to collect test within a multi >>>>> inherited class. Take test_constant.py as an example, it defines a >>>>> class, >>>>> >>>>> >>>>> class TestConstant(BaseTestConstant, JvmTest): >>>>> pass >>>>> >>>>> >>>>> and JvmTest is defined as, >>>>> >>>>> >>>>> class JvmTest(BaseRtypingTest, OORtypeMixin): >>>>> ...... >>>>> >>>>> >>>>> When I executed the folloing, >>>>> >>>>> >>>>> ypy pypy/test_all.py rpython/translator/jvm/test/**test_constant.py >>>>> --collectonly >>>>> >>>>> >>>>> it reported 0 item was collected. If I remove BaseTestConstant from >>>>> TestConstant's super classes, it still reports 0 item collected; but if >>>>> I remove JvmTest from its super classes, it reports 18 items are >>>>> collected. >>>>> >>>>> >>>>> I'm wondering how the daily test solve this problem? >>>>> >>>>> Thanks, >>>>> James Lan >>>>> >>>>> > [View Less]

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Dinner w/ Noisebridge hackers next week?
by Naomi Most March 7, 2013

March 7, 2013

Hi guys, Responding to the blog post about a San Francisco visit -- a handful of us Python oriented hackers at Noisebridge would love to bring you to the space and take you to dinner. I propose Monday evening to meet at Noisebridge around 7pm. Tuesday evening at 6pm would also work for most of us. Let me know if you can do it, and we'll put the announcement up on the Noisebridge list asap. Any time you want to spend would be fantastic, whether you want to talk at us or do a discussion at … [View More]

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Re: [pypy-dev] Slow int code
by Roger Flores March 4, 2013

March 4, 2013

On March 3, 2013 2:20 AM, Carl Friedrich Bolz wrote: >Are you *sure* you are running on a 64 bit machine? Sure? No. I assumed it's 64bit pypy because it was generating x86_64 instructions. How would you check for sure? uname reports x86_64 on the machine I built pypy on. $ pypy --version Python 2.7.3 (42c0d1650cf4, Feb 23 2013, 01:53:42) [PyPy 2.0.0-beta1 with GCC 4.6.3] That doesn't show the machine size. pypy --info is interesting but doesn't help either ? >… [View More]

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Slow int code
by Roger Flores March 3, 2013

March 3, 2013

Hi guys. I've been looking at two simple routines using jitviewer to figure out why they're so much slower than expected. I've also noticed that http://pypy.org/performance.html has the line "Bad examples include doing computations with large longs – which is performed by unoptimizable support code.". I'm worried that my 32 bit int code is falling into this, and I'm wondering what I can do to avoid it? Trivial code like if (self.low ^ self.high) & 0x80000000 == 0: is … [View More]

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newbie question: why doesn't pypy run google app engine dev_appserver.py?
by Adam Sah March 2, 2013

March 2, 2013

There are hordes of small app engine apps that would love to self-host but for the (very) poor performance of dev_appserver, which seems to hinge on CPU and memory performance, which pypy could address. thanks, adam

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test_ztranslation in micronumpy/test not tranlating all ufunc functions in types.py
by matti picus March 1, 2013

March 1, 2013

test/test_ztranslation still passes even if I put an xxx in Bool.reciprocal (line 397) in micronumpy/types.py. What am I doing wrong? Matti

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