Re: [gentoo-user] Do I need NUMA set up in my kernel?

[Miles Malone]

You'd need NUMA if you had a NUMA machine.  In current context, that
would be either a) a dual socket system, b) an amd threadripper, or c)
some of the really high core xeons.  If your motherboard doesnt have
certain memory banks allocated to certain processors or cores, you're
probably not running a NUMA machine.

NUMA stands for non-uniform memory access, it means that certain
processor cores have more direct access to certain parts of memory
than others do (e.g. to access the other memory they need the other
cpu core to pass it through)

On Thu, 23 Sept 2021 at 19:39, Charlotte Delenk <darkkirb@××××××××.de> wrote:
>
> Hi Peter,
>
> On 9/23/21 10:59, Peter Humphrey wrote:
> > Hello list,
> >
> > I see "[    0.003162] No NUMA configuration found" in dmesg. Does that mean I
> > should, or can, remove the NUMA settings from the kernel? This is a Ryzen M9
> > 5900X machine.
>
> I have CONFIG_NUMA unset on both of my AMD Ryzen machines (Zen+ and
> Zen2) with no issues
>
>