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[Bug 1385308] Re: Nova libvirt driver does not bind guest memory to NUMA nodes

 

** Changed in: nova
       Status: Fix Committed => Fix Released

** Changed in: nova
    Milestone: None => kilo-1

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https://bugs.launchpad.net/bugs/1385308

Title:
  Nova libvirt driver does not bind guest memory to NUMA nodes

Status in OpenStack Compute (Nova):
  Fix Released

Bug description:
  After testing the libvirt NUMA support I noticed that the guest XML is
  missing rules to explicitly bind guest NUMA nodes to host NUMA nodes.

  The vCPUs are still all bound to host NUMA nodes, so the kernel will
  prefer allocation from those nodes, but it is a much better to be
  explicit about the binding to prevent the kernel from falling back to
  allocate memory from  a non-local node, as that would confuse Nova's
  tracking of NUMA allocation.

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