Neal Gompa wrote:
Yeah, I think that proposal was not workable because of AVX2. The
x86_64-v2 subarch adds SSSE3, SSE4.2, POPCNT, and CMPXCHG16B to the
current x86_64 baseline. All of these instructions were present in the
first Intel Macs launched in 2007, as I recall.
Still means my Core 2 Duo notebook would no longer be able to run Fedora.
> Different question: How is the runtime CPU feature detection /
> dispatch support in glibc coming along? Shouldn't this "work" by now?
No idea, good question, though!
Indeed, runtime detection is clearly the way to go.
Why does this proposal to desupport hardware for no good reason (because the
performance gain can be obtained in a compatible way, where it is even
noticeable at all) keep coming up again and again?
Kevin Kofler