Re: [Valgrind-users] Using callgrind for getting cache misses and data reads of a python program

[Josef W. <Jos...@gm...>]

Am 18.12.2015 um 14:50 schrieb Rohit Takhar:
> Suppose I have a class |TEST| and there is a function |func()|. How can
> I restrict callgrind to get information about this function only. I know
> how to do it in C++, but it is not working in python.
> I tried following
> methods: |--toggle-collect=func| and |--toggle-collect=TEST::func|

These actually are too low-level, as they work on binary code, which would
enable/disable collection for specific functions in the Python interpreter.

You could do a Python extension module allowing to call a C functions
from Python which enables/disables callgrind collection by usingthe
Valgrind client request macro "CALLGRIND_TOGGLE_COLLECT".
Then call this function from your python code whenever you want to toggle
collection state.

Josef

> 
> Thanks,
> Rohit
> 
> 
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