The developers of the Gentoo project announced the introduction of a separate repository with binary packages compiled with support for the third version of the x86-64 microarchitecture (x86-64-v3), used in Intel processors since approximately 2015 (starting with Intel Haswell) and characterized by the presence of such extensions like AVX, AVX2, BMI2, FMA, LZCNT, MOVBE and SXSAVE. The repository offers a separate set of packages, built in parallel with the repository published in December, in which the assembly is made for the basic x86-64 architecture, which can be used on any 64-bit Intel and AMD processors.
The new repository allows you to achieve higher performance on modern processors by using extended instructions in programs. To check x86-64-v3 architecture support, you can view processor information by running the command “ld.so –help” (or “/usr/lib64/ld-linux-x86-64.so.2 –help”). To enable the x86-64-v3 repository in the package manager, you should replace x86-64 with x86-64-v3 in the sync-uri parameter present in the files in the /etc/portage/binrepos.conf/ directory.
Source: opennet.ru
