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[3.12] gh-91795: Update build optimization part of PCbuild/readme.txt (GH-91849) (#107776)
gh-91795: Update build optimization part of PCbuild/readme.txt (GH-91849) (cherry picked from commit 906b73b) Co-authored-by: Fatih <77548106+fatihkabakk@users.noreply.github.com>
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‎PCbuild/readme.txt

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@@ -252,9 +252,11 @@ against a profiling library and contain extra debug information. The
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PGUpdate configuration takes the profiling data and generates optimized
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binaries.
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The build_pgo.bat script automates the creation of optimized binaries.
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It creates the PGI files, runs the unit test suite or PyBench with the
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PGI python, and finally creates the optimized files.
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The build.bat script has an argument `--pgo` that automate the creation
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of optimized binaries.
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It creates the PGI files, runs the unit test suite with the PGI python,
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and finally creates the optimized files.
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You can customize the job for profiling with `--pgo-job <job>` option.
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See
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https://docs.microsoft.com/en-us/cpp/build/profile-guided-optimizations

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