[pypy-dev] deepcopy slower in PyPY ?!

Antonio Cuni anto.cuni at gmail.com
Wed Sep 7 20:16:27 CEST 2011

Hi Jorge,

On 07/09/11 16:43, Jorge de Jesus wrote:
>   Hi to all
> I've benchmark/profile  some code (PyWPS API) and PyPy-c is 2/3x times
> slower than CPython.  This was done in a virtual machine using x86_64
> The code being benchmark spends most of the time making calls to
> copy/deepcopy.  I've found that this was an issue in PyPy 1.6
> (https://bugs.pypy.org/issue767), but the issue has been closed. So I've
> downloaded the latest dev version but PyPy-c continues to be slow
> compared to CPython.

could you please send us a benchmark which showcases the problem? The smaller 
the better, ideally a benchmark which is contained in a single file is easier 
to run and debug than one which involves to download lots of code from the 

Moreover, maybe you could also open a ticket in our bug tracker, so we are 
sure not to forget it.

ciao and thanks,

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