[CentOS-devel] Fedora ELN architecture baseline preparation for CentOS Stream 10

Thu Mar 16 19:13:36 UTC 2023
Fred <fred.fredex at gmail.com>

Thanks Josh!

that means that if I wish to move beyond Centos/rocky/rhel/etc. 9 it will
be time to upgrade the hardware.

Fred

On Thu, Mar 16, 2023 at 2:16 PM Josh Boyer <jwboyer at redhat.com> wrote:

> On Mon, Mar 13, 2023 at 12:27 PM Fred <fred.fredex at gmail.com> wrote:
> >
> > I'm just wondering how (or if) AMD processors map into this issue...
>
> The v1, v2, v3 baselines are defined based on the x86_64 instructions
> available within that family.  AMD CPUs certainly fall into this, and
> you can see an overview here:
>
> https://en.wikipedia.org/wiki/X86-64
>
> > Not just the recent (last several years) CPUs, but earlier ones that
> implement AMD64, such as the Vishera (which I'm still running).
> >
> > Whatever it is doing, Rocky 9 64bit seems to run fine on it, but I
> wonder how I will fare in the future.
>
> As best I can tell, Vishera is a v2 compliant microarchitecture.  RHEL
> 9 has a v2 baseline so Rocky 9 working sounds like what I would
> expect.  The v3 baseline bump would mean that specific CPU won't work
> with ELN/CentOS Stream 10/RHEL 10.  v3 starts with circa 2015 or newer
> CPU models.
>
> josh
>
> > On Mon, Mar 13, 2023 at 12:10 PM Josh Boyer <jwboyer at redhat.com> wrote:
> >>
> >> On Mon, Mar 13, 2023 at 12:03 PM Alex Iribarren <
> alex.m.lists3 at gmail.com> wrote:
> >> >
> >> > Hi Josh,
> >> >
> >> >
> >> > On 3/13/23 17:01, Josh Boyer wrote:
> >> > > RHEL 10 would retain the v2 baseline that RHEL 9 carries if there
> was
> >> > > no change, so that equipment is still out of scope for RHEL usage
> >> > > regardless.
> >> >
> >> > Yes, I wasn't expecting v1 to return for RHEL 10, I'm just wondering
> if
> >> > we can give v2 a bit more life.
> >>
> >> We plan on moving forward with the v3 baseline change.
> >>
> >> josh
> >>
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