问题描述
我在C ++类上实现了Python扩展。我没有一个C ++目标来运行valgrind。我想使用valgrind内存检查。
I have Python extensions implemented on C++ classes. I don't have a C++ target to run valgrind with. I want to use valgrind for memory check.
我可以使用valgrind与Python吗?
Can I use valgrind with Python?
推荐答案
可以使用 valgrind
。你只需要使用由Python开发人员提供的valgrind抑制文件,所以你不会因为Python的自定义内存分配/重新分配函数而产生一系列的误报。
Yes, you can use valgrind
with Python. You just need to use the valgrind suppression file provided by the Python developers, so you don't get a bunch of false positives due to Python's custom memory allocation/reallocation functions.
可以在此处找到valgrind抑制文件:
The valgrind suppression file can be found here: http://svn.python.org/projects/python/trunk/Misc/valgrind-python.supp
重要信息:您需要取消注释PyObject_Free在压缩文件中的PyObject_Realloc *。
IMPORTANT: You need to uncomment the lines for PyObject_Free and PyObject_Realloc in the suppression file*.
推荐的使用语法是:
$ valgrind --tool=memcheck --suppressions=valgrind-python.supp \
python -E -tt ./my_python_script.py
另请参阅Python SVN仓库中的此README文件,其中描述了使用valgrind使用Python的不同方法:
See also this README file from the Python SVN repo which describes the different ways of using Python with valgrind: http://svn.python.org/projects/python/trunk/Misc/README.valgrind
* - 或者,您可以重新编译Python,并禁用PyMalloc,这允许您捕获更多的内存泄漏,如果您只是抑制PyMalloc,将不会显示。
* - Alternatively, you can recompile Python with PyMalloc disabled, which allows you to catch more memory leaks that won't show up if you just suppress PyMalloc.
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