[Python-Dev] PyDict_SetItem hook (original) (raw)

John Ehresman jpe at wingware.com
Thu Apr 2 04:16:51 CEST 2009

Collin Winter wrote:

Have you measured the impact on performance?

I've tried to test using pystone, but am seeing more differences between runs than there is between python w/ the patch and w/o when there is no hook installed. The highest pystone is actually from the binary w/ the patch, which I don't really believe unless it's some low level code generation affect. The cost is one test of a global variable and then a switch to the branch that doesn't call the hooks.

I'd be happy to try to come up with better numbers next week after I get home from pycon.

John

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