On Mon, Dec 27, 2021 at 06:54:41PM +0100, Antony Stone wrote:
> I'm sure I've read somewhere (and not especially recently) that Linux on AMD
> Ryzen CPUs can be unreliable and/or surprisingly poor performance.

Yes, ryzen had issues in its early days:

<https://www.extremetech.com/computing/254750-amd-replaces-ryzen-cpus-users-affected-rare-linux-bug>

<https://www.cobuildlab.com/blog/AMD-fixes-Ryzen-3000-problems-with-Linux/>

<https://bugzilla.kernel.org/show_bug.cgi?id=196683>

I'm running Beowulf on a custom built ryzen 7 1800x system with a MSI
b350 gaming plus motherboard with a custom compiled 5.15.11 kernel
with no problems. While this is considered old hardware at end of
2021, I'm still amazed by how fast it is compared to what I was used
to for a long time before building this machine.

Greg


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