[Pyrex] Pyrex optimization

[Greg Ewing]

Phillip J. Eby:

> The other performance issues I've seen with Pyrex are attribute access, and 
> global names.  I don't know if these are fixed in 0.9, but in previous 
> versions, Pyrex uses PyObject_GetAttrString() for attribute lookup, which 
> requires memory allocation and various nested calls of overhead before it 
> then calls PyObject_GetAttr().

This is one of the things I'm planning to fix. I suspect it's
one of the main reasons that Pyrexed pure-python code is
sometimes slower than interpreted Python.

Greg Ewing, Computer Science Dept, +--------------------------------------+
University of Canterbury,	   | A citizen of NewZealandCorp, a	  |
Christchurch, New Zealand	   | wholly-owned subsidiary of USA Inc.  |
greg at cosc.canterbury.ac.nz	   +--------------------------------------+