[Python-Dev] cProfile and threads (original) (raw)

Kristján Valur Jónsson kristjan at ccpgames.com
Tue Aug 17 12:46:11 CEST 2010

-----Original Message----- From: python-dev-bounces+kristjan=ccpgames.com at python.org [mailto:python-dev-bounces+kristjan=ccpgames.com at python.org] On Behalf Of Antoine Pitrou

Does that mean you're proposing code for inclusion in CPython that can only be tested with Stackless? Can't Stackless use its own patches instead? While this work originated with Stackless, I have gone through the trouble of porting it to CPython, because it is relevant for CPython too. Multiple "stacks" translates to multiple "threads" in C Python. (Confusingly though, the _lsprof.c patch actually has a #ifdef STACKLESS that I forgot to remove. Sorry about that)

I've often heard that cProfile didn't give correct profiling information with multiple threads. Is it true? Yes, and that's the purpose of this submission: To fix exactly that.

K

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