On Mon, Jul 22, 2019 at 4:43 PM David Airlie <airlied@xxxxxxxxxx> wrote: > > On Tue, Jul 23, 2019 at 6:03 AM Josh Boyer <jwboyer@xxxxxxxxxxxxxxxxx> wrote: > > > > On Mon, Jul 22, 2019 at 3:27 PM Ben Cotton <bcotton@xxxxxxxxxx> wrote: > > > > > > https://fedoraproject.org/wiki/Changes/x86-64_micro-architecture_update > > > > > > == 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:fweimer@xxxxxxxxxx fweimer@xxxxxxxxxx] > > > > > > == Detailed Description == > > > > > > After preliminary discussions with CPU vendors, we propose AVX2 as the > > > new baseline. AVX2 support was introduced into CPUs from 2013 to > > > 2015. See [https://en.wikipedia.org/wiki/Advanced_Vector_Extensions#CPUs_with_AVX2 > > > CPUs with AVX2]. > > > > Would it be possible to include some basic instructions or a script > > for people to run on their systems to see if they are AVX2 compliant? > > That would help them assess the impact. > > They did below, grep avx2 /proc/cpuinfo. Ah, I completely glossed over that. My apologies. > But don't bother, this will just get embarrassing and turn into a pile > on. I think this should be retracted before it ends up being a > phoronix article making the project look bad. Hm. I don't think it needs to turn into that. Perhaps it can lead to a productive conversation in another way. josh _______________________________________________ devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@xxxxxxxxxxxxxxxxxxxxxxx
