Gentoo Archives: gentoo-user

From: Grant Taylor <gtaylor@×××××××××××××××××××××.net>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] Do I need NUMA set up in my kernel?
Date: Thu, 23 Sep 2021 16:30:10
Message-Id: 18d0873f-796a-eaca-7387-d2f400d241e5@spamtrap.tnetconsulting.net
In Reply to: Re: [gentoo-user] Do I need NUMA set up in my kernel? by Miles Malone
1 On 9/23/21 4:39 AM, Miles Malone wrote:
2 > You'd need NUMA if you had a NUMA machine. In current context, that
3 > would be either a) a dual socket system, b) an amd threadripper, or
4 > c) some of the really high core xeons. If your motherboard doesnt
5 > have certain memory banks allocated to certain processors or cores,
6 > you're probably not running a NUMA machine.
7
8 Will a kernel without NUMA support boot and run on a system that has a
9 NUMA architecture?
10
11 If it will boot and run, does it simply do so in a sub-optimal way?
12
13 Flipping the coin on the other side, is there any negative effect (other
14 than kernel size / lines of code / attack surface) for having NUMA
15 support enabled on a non-NUMA system?
16
17
18
19 --
20 Grant. . . .
21 unix || die

Replies

Subject Author
Re: [gentoo-user] Do I need NUMA set up in my kernel? Charlotte Delenk <darkkirb@××××××××.de>