On 3/2/21 12:51 PM, Allan McRae via arch-dev-public wrote: > Hi all, > > A new RFC has been opened here: > https://gitlab.archlinux.org/archlinux/rfcs/-/merge_requests/2 > > Summary: > Make -march=x86_64-v2 the default for our packages. This assumes the > following instruction sets which are essentially available on all but > the oldest AMD CPUs: > > CMPXCHG16B, LAHF-SAHF, POPCNT, SSE3, SSE4.1, SSE4.2, SSSE3 > > Please visit the above link for discussion. > > Allan >
Is there a way to test if my system supports those instructions? Maybe a user poll can give us a better overview how many people are affected? ~Nico