Author skrah
Recipients Robin.Schreiber, ezio.melotti, loewis, mark.dickinson, mrabarnett, pitrou, rhettinger, skrah
Date 2012-08-19.07:45:04
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Message-id <20120819074505.GA20781@sleipnir.bytereef.org>
In-reply-to <1345329400.69.0.320813862108.issue15722@psf.upfronthosting.co.za>
Content
The test suite is not a good benchmark: it also tests decimal.py. For
numerical performance I'm running:

  cd Modules/_decimal/tests
  ../../../python bench.py

You can hit Ctrl-C after the first cdecimal result, since that's usually
already a pretty good indicator of overall performance. On 64-bit, for
9 digits of precision cdecimal is currently only around 1.5 times slower
than float. I want to keep that.

Running an unpatched _decimal.c three times gives (Linux, 64-bit, Core2 Duo):

0.162576s  0.165146s  0.163242s

With your second patch:

0.204383s  0.204383s  0.206919s

> Regarding the failing test:
> It appears that the hackcheck() method in typeobject.c is responsible for this failure: 

Thanks for the analysis. Perhaps Martin can comment on that.
History
Date User Action Args
2012-08-19 07:45:08skrahsetrecipients: + skrah, loewis, rhettinger, mark.dickinson, pitrou, ezio.melotti, mrabarnett, Robin.Schreiber
2012-08-19 07:45:04skrahlinkissue15722 messages
2012-08-19 07:45:04skrahcreate