What type of optimization you specifically refer to, and which benchmarks? Changes to the ARM CPUs across producers are minor, and the packages are also practic

What type of optimization you specifically refer to, and which benchmarks? Changes to the ARM CPUs across producers are minor, and the packages are also practically the same (the distributions are few). > without complete Upstream Kernel support and Open Sourcing of all necessary drivers, none of these Boards is really useful. it's not clear if you refer to SBCs in general, or Pi alternatives. nonetheless, essentially all of them have Linux support (at least, Armbian support); of course, having upstream support would make them more usable, but this is different from "useful".