Antony Stone - 27.12.21, 18:54:41 CET: > 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. > > Can anyone comment on current (eg: Beowulf / Chimaera with standard > kernels) operation on such machines? > > If it matters, I'm looking at desktop / tower / server motherboards > and not laptops, and I don't care two hoots about graphics - this > would be for networked machines accessed exclusively remotely. > > Any opinions from personal experience, or pointers to reliable data, > on the topic would be appreciated :)
Only experience from laptop. ThinkPad T14 Gen 1 with AMD Ryzen 7 PRO 4750U. Works nicely. I managed to run it below its original specs by compiling a kernel to "powersave" CPU governor as default. But after I corrected that I am very pleased with performance of this 8-core hyper threading CPU. Using "schedutil" governor currently and looking forward to new AMD P-state driver for Zen 2 and Zen 3 CPU. I do not expect the Zen 2 desktop CPU experience to be much different, except for the higher performance of a desktop CPU. Not relevant for server usage: Standby mostly works. Even in Windows mode. Up to kernel 5.15 at least. With 5.16-rc2 I had black screen. Suspend to disk was broken some kernel releases ago. Memory corruption after waking up leading to BTRFS errors. Graphics mostly works with for a laptop GPU impressive enough frame rates at least for not too demanding games. Best, -- Martin _______________________________________________ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
