Created
May 28, 2018 12:23
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replicate PGO ICE with Python-2.7.15 and GCC
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| wget "https://github.com/python/cpython/archive/v2.7.15.tar.gz" | |
| tar xzf v2.7.15.tar.gz | |
| # patch to enable PGO for extensions and leave the *.gcda files at the end | |
| wget "https://gist.githubusercontent.com/stefantalpalaru/3035b87a48cc273585ee69f95e8343bf/raw/874ea6507321e22ff5c7a106ceb36d2d41787b43/python-2.7.15-PGO-ICE.patch" | |
| cd cpython-2.7.15 | |
| patch -p1 -i ../python-2.7.15-PGO-ICE.patch | |
| CFLAGS="-O3 -march=native -pipe" LDFLAGS="-Wl,-O1 -Wl,--as-needed -Wl,--sort-common" ./configure --enable-optimizations --with-lto | |
| make -j8 EXTRATESTOPTS="-j8" 2>&1 | tee build.log | |
| grep '\btimemodule\.c' build.log | |
| find -name 'timemodule.gcda' -exec gcov-dump '{}' \; | head | cut -d ':' -f 2- |
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