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It has 12 cores, but only 6 of them use the 3D cache:
It's usually better for gaming to use only the 3D cache cores. Will they be selected automatically on Linux? Or do I have to set manually (by taskset/WINE_CPU_TOPOLOGY)?
I have used only Intel cpus before, I'm not into AMD/Ryzen. The only posts I have found on this are for Windows. What is the current state on Linux?
I'm on openSUSE Tumbleweed, kernel 6.7.2-1-default, KDE Plasma 5.27.10, X11.
I have a MSI B650 Gaming Plus Wifi motherboard with up-to-date Bios (7E26v17, 2023-12-14).
(Don't get me wrong. The performance of my new 7900X3D is great. I'm just curious if I set everything correctly to work on max efficiency.)
Last edited by Liemaeu on 6 Feb 2024 at 9:51 am UTC
I found this.
[Phoronix Review](https://www.phoronix.com/review/amd-ryzen9-7900x3d)
Usually if something needs to be enabled Phoronix will say in their review. I didn't see anything, but there is a huge comment section, so if you ask there surely people will respond.
"On the Linux side, there haven't been any AMD patches to optimize the Linux kernel around this differing of CCD characteristics for cache vs. frequency so that the kernel scheduler would be able to ensure optimized task placement."
[Reddit](https://libreddit.pussthecat.org/r/linux_gaming/comments/180j84m/ryzen_3d_vcache_handling_on_linux_trying_to/) agrees.
Last edited by LoudTechie on 6 Feb 2024 at 4:14 pm UTC
that's what's usually used in HPC context and does that job quite well.
but i don't know if that requires specific features on the mainboard and/or cpu (or even code changes :shock:) to make it work.. so you'll need to do some research/testing..
good luck!
Last edited by peta77 on 6 Feb 2024 at 8:16 pm UTC
https://github.com/FeralInteractive/gamemode
Should I enable parking or pinning? Or is it enabled by default?
Last edited by Liemaeu on 7 Feb 2024 at 1:35 pm UTC