from Chewy7324@discuss.tchncs.de to linux@lemmy.ml on 30 Dec 2023 18:01
https://discuss.tchncs.de/post/8524047
Additional paths will be inserted into the search path used for executables on systems which have a compatible CPU. Those additional paths will mirror the AMD64 / x86_64 “microarchitecture levels” supported by the glibc-hwcaps mechanism: x86-64-v2, x86-64-v3, x86_64-v4. Systemd will be modified to insert the additional directories into the $PATH environment variable (affecting all programs on the system) and the equivalent internal mechanism in systemd (affecting what executables are used by services). Individual packages can provide optimized libraries via the glibc-hwcaps mechanism and optimized executables via the extended search path. This optimized code will be used if the CPU supports it. Which packages provide the optimized code and at which level will be made by individual package maintainers based on benchmark results.
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