Virt driver guest NUMA node placement & topology
This feature aims to enhance the libvirt driver to be able todo intelligent
NUMA node placement for guests. This will increase the effective utilization
of compute resources and decrease latency by avoiding cross-node memory
accesses by guests.
Blueprint information
- Status:
- Complete
- Approver:
- John Garbutt
- Priority:
- Medium
- Drafter:
- Daniel Berrange
- Direction:
- Approved
- Assignee:
- Daniel Berrange
- Definition:
- Approved
- Series goal:
- Accepted for juno
- Implementation:
-
Implemented
- Milestone target:
-
2014.2
- Started by
- Daniel Berrange
- Completed by
- Michael Still
Related branches
Sprints
Whiteboard
Gerrit topic: https:/
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Virt driver guest NUMA node placement & topology
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libvirt: introduce separate class for cpu tune XML config
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libvirt: add support for per-vCPU pinning in guest XML
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libvirt: add support for memory backing parameters
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libvirt: add support for guest NUMA topology in XML config
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libvirt: add parsing of NUMA topology in capabilities XML
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libvirt: test setting of CPU tuning data
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libvirt: Remove use of db for flavor extra specs in tests
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libvirt: add helpers for parsing/formatting CPU range specs
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virt: move get_cpuset_ids into nova.virt.hardware
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virt: split CPU spec parsing code out into helper method
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virt: add method for formatting CPU sets to strings
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libvirt: convert cpuset XML handling to use set instead of string
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Add dict transformations to hardware NUMA classes
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Add numa_topology column to the compute_node table
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libvirt: Add method for getting host NUMA topolog
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Add numa_topology column to the instances table
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Add a method for updating usage to VirtNUMAToplogy
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libvirt: add support for memory tuning in config
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virt: helper for processing NUMA topology configuration
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Make usage_from_
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Expose numa_topology to the resource tracker
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Add claims testing to VirtNUMAHostTop
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Add FlavorList.
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Cache flavors in the resource tracker
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Hook NUMA topology checking into claims
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Make resource tracker track NUMA usage
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API boot process sets NUMA topology for instances
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Method for getting NUMA usage from an instance
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Make HostManager track NUMA usage
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Add the NUMATopologyFilter
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libvirt: Consider numa_topology when booting
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Add a Set and SetOfIntegers object fields
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Make Object FieldType from_primitive pass objects
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Remove instance relationship from InstanceExtra model
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Add pci_requests to instance_extra table
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WIP: Add InstancePCIRequests object
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Add instance_
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InstanceNUM
Has some +2s, so leaving in juno for now. But its looking very, very tight now. --johnthetubaguy 2nd September 2014
All in the gate now, so needs pushing through. --johnthetubaguy 3rd September 2014
The major parts of this are unable to get through the gate before FFE. Kicking this out of juno for now. Please apply for a FFE at the nova-meeting. --johnthetubaguy 4th September 2014
Work Items
Dependency tree
* Blueprints in grey have been implemented.
