On 2021-12-27 18:54:41, Antony Stone wrote: > Hi. > > Disclaimer: I generally don't like people saying things like "I read > somewhere > that..." without backing up what they're talking about, but... > > 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 :)
Since you asked, I get to brag. B-) I built a super desktop a bit over a year ago. Motherboard - MSI Creator TRX40 CPU - AMD Ryzen Threadripper 3990X 4 GHz 64-Core Processor RAM - G.Skill Trident Z Neo 256 GB (8 x 32 GB) DDR4-3600 CL18 Memory Storage (OS) - Seagate FireCuda 520 2 TB M.2-2280 NVME SSD Storage (everything else) - Seagate 16TB Ironwolf Pro SATA 7200RPM NAS Hard Drive GPU - Sapphire Radeon RX 5600 XT BE 6 GB PULSE OS - Devuan Beowulf. I skimped on the graphics card, coz gamers made everyone put RGBling on everything, so I had to back up one model to get one without RGBling. I wish I could have done the same for the RAM, AND gotten ECC, but alas neither was available. The RGBling on the RAM can ONLY be controlled from Windows, and doesn't remember it's settings after reboot. I can disable RGBling on motherboard from BIOS and case from a switch. This desktop sits on the floor, but projects RGBling onto my high ceiling. Pffft First problem was the motherboard, two of the RAM sockets screwed up my RAM if they where full. A replacement motherboard sorted that out, but it was a bitch figuring that out. Which one was faulty, mobo or RAM? Second problem was the PSU, it's fan is now permanently stuck on, and they want me to spend a month waiting for it to travel across the world and back before they will replace it. My old desktop died, not gonna do that. I can't go a month without a computer. Third problem is that I need a backported kernel to support that graphics card properly, and a third party Mesa - http://ppa.launchpad.net/kisak/turtle/ubuntu bionic Somewhere deep inside the Mesa packages, one of them needlessly depended on a tiny package being a version up from what was available. I built my own version of that package with a bumped version number. It's been running for over a year since I got it all sorted out. The only problem is that once in a blue moon X craps out. I think I have that traced to a Mesa bug. Installing Chimaera on it might solve those X issues, no need for a backported kernel, may not need third party Mesa. I may get a more recent GPU for the thing, with more memory, if I can avoid selling off my kidneys, first born, and avoid RGBling. -- A big old stinking pile of genius that no one wants coz there are too many silver coated monkeys in the world. _______________________________________________ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
