Gentoo vs Fedora/Ubuntu
I think it would be interesting to see gaming, server(Apache, MySQL, etc), and multimedia benchmarking between the latest Gentoo ~amd64 entirely rebuilt with gcc -O2 -march=native vs latest Fedora vs latest Ubuntu. The number of new CPU instructions the latest Intel processors have has grown by alot, but because binary distros always have to conform to the lowest common dinominator they have to use -march=generic. This turns off modern features like sse, avx and more. You can compare gcc -march=generic -Q --help=target to gcc -march=native -Q --help=target to see for yourself! The question is do these features matter? Can gcc automatically use them or are they features only a human can use?
I think it would be interesting to see gaming, server(Apache, MySQL, etc), and multimedia benchmarking between the latest Gentoo ~amd64 entirely rebuilt with gcc -O2 -march=native vs latest Fedora vs latest Ubuntu. The number of new CPU instructions the latest Intel processors have has grown by alot, but because binary distros always have to conform to the lowest common dinominator they have to use -march=generic. This turns off modern features like sse, avx and more. You can compare gcc -march=generic -Q --help=target to gcc -march=native -Q --help=target to see for yourself! The question is do these features matter? Can gcc automatically use them or are they features only a human can use?
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