Add an extension to the NUMA filter scheduler for host memory bw

Registered by Sudipta Biswas

We have added a spec in liberty to collect the memory bandwidth utilization on a given NUMA node.
The spec can be found here:

The spec initially consisted of writing an extension to the NUMA topology scheduler filter
but was scoped out into a seperate BP.

In order to make use of the data updated for the host memory bandwidth utilizations on each NUMA node, an extension could be written to the existing numa_topology_filter that could make use of this data and do the necessary filtering of NUMA nodes based on the aforementioned attribute.

Blueprint information

Not started
John Garbutt
Sudipta Biswas
Needs approval
Sudipta Biswas
Pending Approval
Series goal:
Not started
Milestone target:

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Thank you for submitting this blueprint for review. This was approved during the nova-meeting. --johnthetubaguy 26th June 2015

Please note this blueprint will delayed until the M release if it is not in the NeedsCodeReview state (with all the code up for review) before July 16th, and merged by July 30th. We expect to re-open master for the M release in September. For more information, please see: and
--johnthetubaguy 15th July 2015

Unapproved for liberty due to the Non-Priority Feature Proposal Freeze. --johnthetubaguy 16th July 2015

Does this actually need more code? What is left to do? -- mriedem 20151008

mriedem - no code was merged for this during the liberty cycle. - sbiswas7 20151009

As there is no code up for review, removing this blueprint from mitaka, as part of the non-priority Feature Freeze. For more details please see: --johnthetubaguy 2015.01.15


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