How many CPUs (or CPU-sockets) do I have?

To find out how many physical CPU-sockets (or sockets) there are on your server go to the graphical user interface of your Proxmox VE and select the server node. Then click the tab "Summary"–the CPU name and the CPU-socket count will be listed.

To show the socket count via command line:

cat /proc/cpuinfo | grep "physical id" | sort | uniq | wc -l

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