我怎么知道我的服务器是否有NUMA? [英] How do I know if my server has NUMA?

问题描述

从Java垃圾收集跳来跳去，我遇到了

Hopping from Java Garbage Collection, I came across JVM settings for NUMA. Curiously I wanted to check if my CentOS server has NUMA capabilities or not. Is there a *ix command or utility that could grab this info?

推荐答案

我在这里不是专家，但是这里有一些东西:

I'm no expert here, but here's something:

第1栏，无NUMA:

~$ dmesg | grep -i numa
[    0.000000] No NUMA configuration found

第2栏，一些NUMA:

Box 2, some NUMA:

~$ dmesg | grep -i numa
[    0.000000] NUMA: Initialized distance table, cnt=8
[    0.000000] NUMA: Node 4 [0,80000000) + [100000000,280000000) -> [0,280000000)

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