Hi Ron, Exactly same problem I have discovered yesterday in one of my production servers running PyPy 2.2.1, Flask==0.10.1, gunicorn==18.0 and tornado==3.2 on ArchLinux updated on daily basis. I do not have more details on this, but I can say only that POST requests takes at least 10x slower then on CPython. However, I measured time spent inside method and its 0.01s, and actual sending of response takes 30s. This is very strange for reason.
How I can help on this and send you more details? Regards, Marko Tasic On Wed, Jan 22, 2014 at 2:08 PM, Ron Reiter <ron.rei...@gmail.com> wrote: > Something really strange is happening to me. I've stumbled upon a memory > leak that happens only when answering a POST request using Twisted and Pypy. > > The problem is described here: > > > http://stackoverflow.com/questions/21063842/using-twisted-cyclone-pypy-to-handle-post-requests-cause-a-memory-leak > > It could either be a bug in the Python code that handles the request and > leaks, a but in Twisted, or in Pypy. > > I've been investing the problem for weeks now, with the following > conclusion: > > * CPython does not leak with this code > * Tornado with Pypy does not leak with this code > * Answering GET requests instead of POST requests does not leak with this > code > * I tried switching GCs, collecting using gc.collect and setting > PYPY_GC_MAX, those attempts did not help > * This happens both on Linux and Mac > > Insights as to how to debug this are very welcome. > > Thanks, > > -- > > Ron Reiter > [image: Facebook] <http://www.facebook.com/ron.reiter> [image: > Twitter]<http://twitter.com/#!/ronreiter> [image: > LinkedIn]<http://www.linkedin.com/profile/view?id=4436607&locale=en_US&trk=tab_pro> > Contact me: [image: Skype] ron.reiter > > _______________________________________________ > pypy-dev mailing list > pypy-dev@python.org > https://mail.python.org/mailman/listinfo/pypy-dev > >
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