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gh-118518: Improve perf docs #118708

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Merged
merged 3 commits into from
May 7, 2024
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gh-118518: Improve perf docs #118708

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gh-118518: Improve perf docs
pablogsal May 7, 2024
50d8e06
Update Doc/howto/perf_profiling.rst
pablogsal May 7, 2024
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pablogsal May 7, 2024
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Update Doc/howto/perf_profiling.rst 
Co-authored-by: Kerim Kabirov <the.privat33r+gh@pm.me>
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@pablogsal @Privat33r-dev
pablogsal and Privat33r-dev authored May 7, 2024
commit 50d8e06b8ad628cff9b6b24c4da9d60fd84d0168
6 changes: 3 additions & 3 deletions 6 Doc/howto/perf_profiling.rst
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Expand Up @@ -246,10 +246,10 @@ or using the environment variable::
$ perf inject -i perf.data --jit --output perf.jit.data
$ perf report -g -i perf.jit.data

When ``perf inject --jit`` its called. this will read ``perf.data``,
automatically pick up the perf dump file that python creates (in
``perf inject --jit`` command will read ``perf.data``,
automatically pick up the perf dump file that Python creates (in
``/tmp/perf-$PID.dump``), and then create ``perf.jit.data`` which merges all the
JIT information together. This should also create a lot of ``jitted-XXXX-N.so``
JIT information together. It should also create a lot of ``jitted-XXXX-N.so``
files in the current directory which are ELF images for all the JIT trampolines
that were created by Python.

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