[Python-Dev] PEP 414 - some numbers from the Django port (original) (raw)

Maciej Fijalkowski fijall at gmail.com
Fri Mar 9 01:19:29 CET 2012

On Wed, Mar 7, 2012 at 2:36 PM, Vinay Sajip <vinay_sajip at yahoo.co.uk> wrote:

Armin Ronacher <armin.ronacher active-4.com> writes:

What are you trying to argue?  That the overall Django testsuite does not do a lot of string processing, less processing with native strings?

I'm surprised you see a difference at all over the whole Django testsuite and I wonder why you get a slowdown at all for the ported Django on 2.7. The point of the figures is to show there is no difference (statistically speaking) between the three sets of samples. Of course, any individual run or set of runs could be higher or lower due to other things happening on the machine (not that I was running any background tasks), so the idea of the simple statistical analysis is to determine whether these samples could all have come from the same populations. According to ministat, they could have (with a 95% confidence level).

But the stuff you run is not really benchmarking anything. As far as I know django benchmarks benchmark something like mostly DB creation and deletion, although that might differ between CPython and PyPy. How about running actual django benchmarks, instead of the test suite?

Not that proving anything is necessary, but if you try to prove something, make it right.

Cheers, fijal

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