AMD Ryzen 7 3700X and Ryzen 9 3900X Offer Incredible Linux Performance | Hacker News Reader

AMD Ryzen 7 3700X and Ryzen 9 3900X Offer Incredible Linux Performance

phoronix.com

57 pointsjrepinc11 comments

This caveat is unsurprising. Systemd was a huge mistake and we are all paying for it now.

The actual article title (atm) is "AMD Ryzen 7 3700X + Ryzen 9 3900X Offer Incredible Linux Performance But With A Big Caveat". This link omits the "caveat" part. Please fix that.

The caveat is temporary, really not that important. Works fine with previous LTS versions of the kernel and future versions not pulled into there current Ubuntu version. Some kind of bug in the current kernel version that the current Ubuntu districts runs on.

Caveat is "does not boot any recent systemd distro". Issue seems to be somewhere in systemd. Ubuntu 18.04 boots and runs fine, so as long as you like LTS, you're good.

I don't see this as a big caveat, because there is near zero chance this issue won't be speedily fixed now the CPU is released. It's probably some locking/threading issue which previous architectures never hit.

The original article is titled "...With A Big Caveat". That is the author's (Michael Larabel's) decision. It's fine to disagree and to discuss that in the comments here. But linking to the article using a title that means something quite different is misleading editorializing.

Try to put the full title into https://news.ycombinator.com/submit

It's 10 characters too long. But when shortening it, the meaning should not be significantly changed.

E.g., you could replace "AMD Ryzen 7 3700X + Ryzen 9 3900X" with "AMD Ryzen 3700X + 3900X". 10 characters shorter and no confusion or change in meaning. I'm sure there are other ways to rewrite this.

> regression either within the kernel but more likely some cross-kernel/user-space interaction issue leaving newer Linux distributions unbootable.

Ouch.

Yeah, also, according to the article, AMD has been aware of the issue for some time now. Buy it seems there is no urgency to address this.

If you are wondering why would someone prefer slower/insecure/etc processors from Intel, this would be a good reason; I want to get on with my work rather than debug AMD's processors for them.

If you 'just wanted to get on with your work' you'd be using LTS releases anyway which is what AMD has prioritized.

There's hints in the post that "user space" in this case is probably newer versions of systemd. Ubuntu 18.04 LTS does work fine.

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