Configuring NUMA on a Proxmox VE VM

[emptness]

Hello everyone!
Colleagues, tell me what the line from the documentation means: "If the NUMA option is used, it is recommended to set the number of sockets to the number of nodes of the host system"?
Which nodes are we talking about?

 

[bbgeek17]

NUMA nodes:
https://man7.org/linux/man-pages/ma...Memory Access (NUMA,CPU and the accessed node.

Non-Uniform Memory Access (NUMA) refers to multiprocessor systems
whose memory is divided into multiple memory nodes

https://kb.blockbridge.com/technote/proxmox-tuning-low-latency-storage/#numa-topology

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Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox

 

[emptness]

NUMA nodes:
https://man7.org/linux/man-pages/man7/numa.7.html#:~:text=Non-Uniform Memory Access (NUMA,CPU and the accessed node.

Non-Uniform Memory Access (NUMA) refers to multiprocessor systems
whose memory is divided into multiple memory nodes

https://kb.blockbridge.com/technote/proxmox-tuning-low-latency-storage/#numa-topology

---

Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox

bbgeek17​

thanks a lot for the links, I will definitely try to study in more detail.

But let me clarify, does the number of nodes not match the number of server sockets in the default configuration?

If I'm wrong, can someone tell me how to quickly clarify the number of nodes in the host system?