I/O (PCIe) based NUMA scheduling

asked 2015-04-06 15:46:45 -0500

opstkusr gravatar image

For a guest that spans multiple NUMA nodes, is the NUMA node information associated to PCI devices passed to the guest?

Say a guest is configured to use 2 PCI devices(associated to numa nodes 1 and 2 on the host). The guest is configured to have 2 numa nodes.I tried this with the latest version of openstack and the numa_node information associated with the device shows up as -1 in the vm.

cat /sys/class/net/eth1/device/numa_node -1

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