[Python-Dev] new buffer in python2.7
Stefan Behnel
stefan_ml at behnel.de
Mon Nov 1 09:45:06 CET 2010
Kristján Valur Jónsson, 27.10.2010 16:28:
> Notice how a Slice object is generated. Then a PyObject_GetItem() is
> done. The salient code path is from apply_slice(). A slice object must
> be constructed and destroyed.
If slice object creation bothers you here, it might be worth using a free
list in PySlice_New() instead of creating new slice objects on request.
Creating a slice of something is not necessarily such a costly operation
that it dominates creating the slice object, so optimising the slice
request itself sounds like a good idea.
You can take a look at how it's done in tupleoject.c if you want to provide
a patch. Then, please open a bug tracker ticket and attach the patch there
(and post a link to the ticket in this thread).
Stefan
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