Detect python functions by the "py::" prefix. #363
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Python has support for perf JIT maps. It prefixes the python function names with "py::": https://github.com/python/cpython/blob/4b89c5ebfc7d5d4f008eee0ae6da765dfc28e3a9/Python/perf_trampoline.c#L218 To use this, on Linux, build python 3.12 with frame pointers enabled, and run your python script with the `PYTHONPERFSUPPORT=1` environment variable set: ``` CFLAGS="-fno-omit-frame-pointer -mno-omit-leaf-frame-pointer" pyenv install 3.12 pyenv shell 3.12 samply record PYTHONPERFSUPPORT=1 python stuff.py ```
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This is extremely useful, thanks for adding this!! |
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Python has support for perf JIT maps. It prefixes the python function names with "py::": https://github.com/python/cpython/blob/4b89c5ebfc7d5d4f008eee0ae6da765dfc28e3a9/Python/perf_trampoline.c#L218
To use this, on Linux, build python 3.12 with frame pointers enabled, and run your python script with the
PYTHONPERFSUPPORT=1environment variable set: