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Clang AutoFDO + Propeller Optimization Support Merged For Linux 6.13
Last night when writing about the Clang AutoFDO and Propeller optimization patches sent in for Linux 6.13 I had wondered whether Linus Torvalds would go through with the pull request given some of his past commentary around aggressive compiler optimizations..
But to much delight, this evening Linus Torvalds has merged the Kbuild pull request that introduces Clang-based AutoFDO and Propeller compiler optimization support for allowing greater kernel performance out of tailored (profiled) workloads. Several times Linus Torvalds has expressed reservations around introducing new kernel options for more aggressive compiler optimizations on the basis of producing potentially unsafe code and/or the performance benefits not matching expectations. In any case this Clang Propeller + AutoFDO compiler optimization support is now merged ahead of the Linux 6.13-rc1 kernel release expected tomorrow, 1 December.
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