Open Stack

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Hi all,

there is a series of Neutron backports in the Juno queue that are
intended to significantly improve service performance when handling
security groups (one of the issues that are main pain points of
current users):

- - https://review.openstack.org/130101
- - https://review.openstack.org/130098
- - https://review.openstack.org/130100
- - https://review.openstack.org/130097
- - https://review.openstack.org/130105

The first four patches are optimizing db side (controller), while the
last one is to avoid fetching security group rules by OVS agent when
firewall is disabled.

AFAIK we don't generally backport performance improvements unless they
are very significant (though I don't see anything written in stone
that says so), but knowing that those patches fix pain hotspots in
Neutron, and seem rather isolated, should we consider their inclusion?

Should we come up with some "official" rule on how we handle
performance enhancement backports?

/Ihar
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