Support cache allocation

Registered by Eli Qiao on 2017-02-03

CAT(cache allocation technology) will help the cluster to have ability to improve the QoS on cache level. Which is to say, an instance in OpenStack will be assigned some specify cache on a host and
make sure it can benefit cache(l3 etc), this is very useful especially in NFV scenario.

Libvirt has plan to support CAT, Nova can leverage libvirt to support CAT when boot an instance.

Some useful links:

https://www.redhat.com/archives/libvir-list/2017-January/msg00683.html
https://software.intel.com/en-us/articles/introduction-to-cache-allocation-technology

Blueprint information

Status:
Not started
Approver:
None
Priority:
Undefined
Drafter:
Eli Qiao
Direction:
Needs approval
Assignee:
Eli Qiao
Definition:
New
Series goal:
None
Implementation:
Unknown
Milestone target:
None

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There was no spec ever proposed for this, but does it overlap with https://review.openstack.org/#/c/568678/ ? -- mriedem 20180806

(?)

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