On 3/3/21 6:33 pm, NicoHood via arch-dev-public wrote: > 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? > cat /proc/cpuinfo | grep sse4_2
If you have support for that, then the rest should be fine. > Maybe a user poll can give us a better overview how many people are > affected? People who are affected have more motivation to answer than those who are not. Any poll would be meaningless. A
