On Wed, Jun 16, 2021 at 12:52:22PM +0200, Eugene Syromiatnikov wrote:
Oops, I confused "Gen 3" above with x86_64-v3; however,
with regards to
v2 support, Westmere-based Pentiums/Celerons were released in 2011
and do not support SSE4.1/4.2.
And until the Silvermont core (in 2013) the Atom family didn't support
SSE4.1/4.2 either.
AMD supported SSE4.1/4.2 starting with Bulldozer in 2011, but their
embedded series didn't get it until 2013 with Jaguar.
Oh, one other data point -- VIA didn't support SSE4.2 until their Nano C
in 2015, though they had support for SSE4.1 starting with their Nano
3000 series in 2009.
Anyway. Personally, I only have one Fedora system still in use that
isn't at least x86_64v2 -- a dual-socket pre-Bulldozer Opteron server
that is probably the single most important system I have.
- Solomon
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