$ sudo perf record -F 9999 -g -o perf.data python3.11 my_script.py
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.048 MB perf.data (237 samples) ]
$ sudo perf report --stdio -n -g # C言語のPyEval_EvalFrameDefault関数しか表示されない
# To display the perf.data header info, please use --header/--header-only options.
#
#
# Total Lost Samples: 0
#
# Samples: 237 of event 'cpu-clock:pppH'
# Event count (approx.): 23702370
#
# Children Self Samples Command Shared Object Symbol
# ........ ........ ............ .......... ..................... ..........................................
#
93.67% 0.00% 0 python3.11 python3.11 [.] _start
|
---_start
__libc_start_main
0xffffa58073fc
Py_BytesMain
|
|--71.31%--pymain_run_python.constprop.0
| |
| --70.89%--_PyRun_AnyFileObject
| _PyRun_SimpleFileObject
| run_mod
| |
| --70.46%--PyEval_EvalCode
| |
| |--63.29%--_PyEval_EvalFrameDefault
| | |
| | |--14.77%--PyLong_FromLong
| | | |
| | | |--5.06%--_PyObject_Malloc
| | | |
| | | --3.38%--_Py_NewReference
| | |
| | |--10.97%--_PyObject_Free
| | |
| | |--10.55%--_PyLong_Add
| | | |
| | | --4.22%--_PyObject_Malloc
| | |
| | |--2.53%--PyObject_Malloc
| | |
| | --1.27%--_PyObject_Malloc
| |
| |--4.64%--object_dealloc
| |
| |--1.27%--rangeiter_next
| |
| --1.27%--PyObject_Free
（省略）
Last active
November 3, 2023 12:03
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Linux perfのCPythonサポートサンプル
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| def foo(n): | |
| result = 0 | |
| for _ in range(n): | |
| result += 1 | |
| return result | |
| def bar(n): | |
| foo(n) | |
| def baz(n): | |
| bar(n) | |
| if __name__ == "__main__": | |
| baz(1000000) |
$ sudo perf record -F 9999 -g -o perf.data python3.12 -X perf my_script.py
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.078 MB perf.data (265 samples) ]
$ sudo perf report --stdio -n -g # foo、bar、bazzなどの関数名が表示される
# To display the perf.data header info, please use --header/--header-only options.
#
#
# Total Lost Samples: 0
#
# Samples: 265 of event 'cpu-clock:pppH'
# Event count (approx.): 26502650
#
# Children Self Samples Command Shared Object Symbol >
# ........ ........ ............ .......... ..................... .............................................................>
#
97.36% 0.00% 0 python3.12 python3.12 [.] _start
|
---_start
__libc_start_main
|
--96.98%--0xffffac6473fc
|
--96.60%--Py_BytesMain
|
|--75.47%--pymain_run_python.constprop.0
| |
| --75.09%--_PyRun_AnyFileObject
| _PyRun_SimpleFileObject
| |
| --74.72%--run_mod
| run_eval_code_obj
| PyEval_EvalCode
| py_trampoline_evaluator
| py::<module>:/home/ubuntu/my_script.py
| _PyEval_EvalFrameDefault
| PyObject_Vectorcall
| py_trampoline_evaluator
| py::baz:/home/ubuntu/my_script.py
| _PyEval_EvalFrameDefault
| PyObject_Vectorcall
| py_trampoline_evaluator
| py::bar:/home/ubuntu/my_script.py
| _PyEval_EvalFrameDefault
| PyObject_Vectorcall
| py_trampoline_evaluator
| py::foo:/home/ubuntu/my_script.py
| |
（省略）
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