Hi QEMU dev

Virt Manager is able to configure a QEMU VM with more CPU sockets than the 
physical host has.
For example, in the below VM, when I request 16 vCPU cores,  by default it 
takes as 16 Sockets with 1 core each. The host itself has only 2 Sockets.

  1.  How does QEMU allow this and how the VM works?
  2.  What is the recommended configuration of Sockets/Cores/Threads for best 
VM performance of a 16 core VM running on a 2 sockets host ?

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regards,

Rajesh A
Engineering Media Movement
Media Services

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