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| author | Hugo van Kemenade <1324225+hugovk@users.noreply.github.com> | 2024-05-07 11:47:21 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-05-07 11:47:21 (GMT) |
| commit | 04859228aa11756558807bcf99ccff78e4e8c56d (patch) | |
| tree | 050ba0bb7abecaa1b007267a774e07bcfa1f1f99 /Doc/howto | |
| parent | 48e52fe2c9a7b33671f6b5d1420a71a6f31ad64b (diff) | |
| download | cpython-04859228aa11756558807bcf99ccff78e4e8c56d.zip cpython-04859228aa11756558807bcf99ccff78e4e8c56d.tar.gz cpython-04859228aa11756558807bcf99ccff78e4e8c56d.tar.bz2 | |
gh-118518: Rename `PYTHONPERFJITSUPPORT` and `-X perfjit` with underscores (#118693)
Diffstat (limited to 'Doc/howto')
| -rw-r--r-- | Doc/howto/perf_profiling.rst | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/Doc/howto/perf_profiling.rst b/Doc/howto/perf_profiling.rst index 0ce66f3..ed2b76f 100644 --- a/Doc/howto/perf_profiling.rst +++ b/Doc/howto/perf_profiling.rst @@ -216,19 +216,19 @@ needs to generate unwinding information for every Python function call on the fl ``perf`` will take more time to process the data because it will need to use the DWARF debugging information to unwind the stack and this is a slow process. -To enable this mode, you can use the environment variable :envvar:`PYTHONPERFJITSUPPORT` or the -:option:`-X perfjit <-X>` option, which will enable the JIT mode for the ``perf`` profiler. +To enable this mode, you can use the environment variable :envvar:`PYTHON_PERF_JIT_SUPPORT` or the +:option:`-X perf_jit <-X>` option, which will enable the JIT mode for the ``perf`` profiler. When using the perf JIT mode, you need an extra step before you can run ``perf report``. You need to call the ``perf inject`` command to inject the JIT information into the ``perf.data`` file. - $ perf record -F 9999 -g --call-graph dwarf -o perf.data python -Xperfjit my_script.py + $ perf record -F 9999 -g --call-graph dwarf -o perf.data python -Xperf_jit my_script.py $ perf inject -i perf.data --jit $ perf report -g -i perf.data or using the environment variable:: - $ PYTHONPERFJITSUPPORT=1 perf record -F 9999 -g --call-graph dwarf -o perf.data python my_script.py + $ PYTHON_PERF_JIT_SUPPORT=1 perf record -F 9999 -g --call-graph dwarf -o perf.data python my_script.py $ perf inject -i perf.data --jit $ perf report -g -i perf.data |