[openstack-dev] StarlingX gap analysis to converge with OpenStack master

melanie witt melwittt at gmail.com
Wed Nov 21 20:23:51 UTC 2018

On Wed, 21 Nov 2018 12:11:50 -0600, Miguel Lavalle wrote:
> One of the key goals of StarlingX during the current cycle is to 
> converge with the OpenStack projects master branches. In order to 
> accomplish this goal, the Technical Steering Committee put together a 
> gap analysis that shows the specs and patches that need to merge in the 
> different OpenStack projects by the end of Stein. The attached PDF 
> document shows this analysis. Although other projects are involved, most 
> of the work has to be done in Nova, Neutron and Horizon. Hopefully all 
> the involved projects will help StarlingX achieve this important goal.
> It has to be noted that work is still on-going to refine this gap 
> analysis, so there might be some updates to it in the near future.

Thanks for sending this out. I'm going to reply about what I know of the 
status of nova-related planned upstream features.

On NUMA-aware live migration, it was identified as the top priority 
issue in the NFV/HPC pain points forum session [1]. The spec has been 
approved before in the past for the Rocky cycle, so it's a matter of 
re-proposing it for re-approval in Stein. We need to confirm with artom 
and/or stephenfin whether one of them can pick it up this cycle.

I don't know as much about the shared/dedicated vCPUs on a single host 
or the shared vCPU extension, but the cited spec [2] has one +2 already. 
If we can find a second approver, we can work on this too in Stein.

The vTPM support spec was merged about two weeks ago and we are awaiting 
implementation patches from cfriesen.

The HPET support spec was merged about two weeks ago and the 
implementation patch is under active review in a runway with one +2 now.

For vCPU model, I'm not aware of any new proposed spec for Stein from 
the STX community as of today. Let us know if/when the spec is proposed.

For disk performance fixes, the specless blueprint patch is currently 
under active review in a runway.

The extra spec validation spec [3] is under active review now.

For the bits that will be addressed using upstream features that are 
already available, I assume the STX community will take care of this. 
Please reach out to us in #openstack-nova or on the ML if there are 

For the bugs, again feel free to reach out to us for reviews/help.


[1] https://etherpad.openstack.org/p/BER-nfv-hpc-pain-points
[2] https://review.openstack.org/555081
[3] https://review.openstack.org/618542

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