[Python-Dev] the new profiler and profiling c calls (original) (raw)

Guido van Rossum guido at python.org
Tue Jul 13 03:08:08 CEST 2004

I think there's a slight problem with the profiling of C calls in the new profiler.

When profiling method calls, the C function name is the repr() of the method, which means that a call for instance on str.endswith on different string instances ends up as completely separate calls. This might be intentional, but it's different than the way Python code is profiled, and it's irritating. Testing if a thousand different lines ends in a certain way means the default output from profile gets another thousand lines. I don't really think that's how it should be.

I saw a checkin that changed this to repr() and I didn't understand the point either, but I can easily be convinced that that was the wrong fix for whatever it was trying to fix.

(Sorry, no time for more detail. CVS log is your friend. :-)

--Guido van Rossum (home page: http://www.python.org/~guido/)

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