PyPy 3 is definitely slower than PyPy 2 btw, just so you know
On Sat, Feb 7, 2015 at 8:56 AM, Omer Katz <omer.d...@gmail.com> wrote: > You need to warm up the JIT first. > Run the benchmark a 10,000 times on PyPy before measuring and you'll see the > real performance improvement. > Nevertheless, it does sound like you're hitting a performance bug(s) > somewhere. It's worth investigating. > > 2015-02-07 1:12 GMT+02:00 Tin Tvrtković <tinches...@gmail.com>: >> >> Hello, PyPy folks! >> >> While trying to speed up one of my Django sites, I noticed a new version >> of PyPy >> had just been released. So I grabbed a fresh download of PyPy 3 (since >> this is >> a Python 3 codebase) and tried taking it out for a spin. >> >> However, as far as I can see, whatever I try PyPy is consistently slower >> than >> CPython for this. >> >> Since this is a proprietary site, I've basically ripped out all the code >> except >> my settings.py and my requirements; and am benchmarking the Django admin >> index. >> The results are about the same. >> >> I've set up a small repo that can be used to reproduce the environment: >> https://github.com/Tinche/PyPy-Django-Playground. There's additional info >> in >> the README there. >> >> These tests have been carried out on Ubuntu Trusty, 64-bit. CPython 3 is >> the >> system Python, 3.4. PyPy has been downloaded from the official site and >> unzipped. >> >> So what I basically do is set up an admin session, and use the Django main >> admin >> page. 200 warmup requests, then 100 benchmarked requests, look at the mean >> request time. >> >> Some results: >> >> Django's runserver, DEBUG mode: >> >> PyPy3 485.389 [ms] >> CPython 3.4 105.777 [ms] >> >> Django's runserver, no debug: >> >> PyPy3 44.661 [ms] >> CPython 3.4 18.697 [ms] >> >> Gunicorn, 1 worker, no debug: >> >> PyPy3 28.615 [ms] >> CPython 3.4 13.532 [ms] >> >> I don't exactly claim to be an expert on benchmarking, but assuming my >> site >> is similar to the Django admin, CPython's gonna be giving me better >> performance. >> Also the debug runserver performance is kinda worrying. Nobody's going to >> be >> running this in production, but it makes development a little slower and >> more >> annoying than it should be. >> >> Is there anything to make PyPy more competitive in these kinds of >> scenarios? >> >> Kind regards, >> Tin >> _______________________________________________ >> pypy-dev mailing list >> pypy-dev@python.org >> https://mail.python.org/mailman/listinfo/pypy-dev > > > > _______________________________________________ > pypy-dev mailing list > pypy-dev@python.org > https://mail.python.org/mailman/listinfo/pypy-dev > _______________________________________________ pypy-dev mailing list pypy-dev@python.org https://mail.python.org/mailman/listinfo/pypy-dev
