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    VM-config - sockets/cores - impact

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    • K Offline
      KPS Top contributor
      last edited by

      Hi!

      For every VM, the number of sockets/cores can be configured, but did you ever see any impact through the NUMA change?

      Let's take an AMD Epyc CPU, that provides 4 NUMA nodes.
      I want to tune the performance of a Windows/Linux-VM, that has 8 vCPUs assigned.

      Options:
      --> 1 socket, 8 cores
      --> 2 sockets, 4 cores each
      --> 4 sockets, 2 cores each
      --> 8 sockets, 1 cores each

      What would you prefer, or doesn't this have any performance impact?

      Thank you for your thoughts
      KPS

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