On Monday, 22 July 2019 20:51:27 CEST Ben Cotton wrote:
== Summary ==
Fedora currently uses the original K8 micro-architecture (without
3DNow! and other AMD-specific parts) as the baseline for its
<code>x86_64</code> architecture. This baseline dates back to 2003
and has not been updated since. As a result, performance of Fedora is
not as good as it could be on current CPUs.
This change to update the micro-architecture level for the
architecture to something more recent.
== Owner ==
* Name: [[User:fweimer| Florian Weimer]]
* Email: [mailto:firstname.lastname@example.org fweimer(a)redhat.com]
== Detailed Description ==
After preliminary discussions with CPU vendors, we propose AVX2 as the
new baseline. AVX2 support was introduced into CPUs from 2013 to
CPUs with AVX2].
I'm in the minority here as I have only one computer which supports AVX2, so I
would benefit from it, but even then, I wouldn't want people not being able to
update anymore because their hardware is too old. Maybe dial the proposal back
a bit, for example, target instructions supported by Celerons and Pentiums?