[seddonm1]

Based on the now-deprecated Clear Linux it does seem that these optimizations add up [0] and so maybe we should be considering them more broadly?

[0] https://www.phoronix.com/review/clear-linux-48p-ubuntu/6

[Someone]

AFAIK, that wasn’t solely a matter of picking the optimal compilation flags. It also included profile-guided optimizations and kernel tweaks.

[XorNot]

Doesn't that get into the domain of a distro like Gentoo though? (Or sort of Nix as well) - rebuild everything to precisely target your actual architecture.

[monster_truck]

Yes, and the maximally performant configurations are at odds with a usefully hardened security posture. This only gets more true as time goes on and additional mitigations pile up.