On Mon 2019-03-04 20:19:16, Alexey Dobriyan wrote: > -ad1 patchset adds support for compiling kernel with "-march=native" > compiler option optimizing kernel for the specific CPU. "-march=native" > has been available in userspace for a long time and is trivial to enable > in Gentoo specifically. > > "-march=native" can be used for folks like me who compile kernels on > their home machines and never share binaries. > > See the link for more information: > > > https://www.shlomifish.org/humour/by-others/funroll-loops/Gentoo-is-Rice.html > > Requirements: > > Intel CPU > x86_64 arch > > Usage: > > # apply -ad1 patchset > > # copy regular kernel .config > > # enable "-march=native" support in > # "Processor type and features" > # "Processor family" > > # ensure CONFIG_MARCH_NATIVE is enabled > $ grep -e CONFIG_MARCH_NATIVE .config > > # workaround kbuild race condition if "-j" is used > $ make syncconfig
Linus is unlikely to take this directly; you may want to Cc X86
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