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[Terry Wilson <2011590@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

On a large OVN DB, frozen_row() calls for the event notification
processing can add 10ms up to 40ms or more depending on the size of the
row (as compared to 4usec for just passing the Row object). This can
easily make startup times w/ large DBs increase by a factor of 3 or
more.

We are currently calling frozen_row() for every event, but we really
only need it for the events that we have registered.

** Affects: neutron
     Importance: Undecided
         Status: In Progress

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https://bugs.launchpad.net/bugs/2011590

Title:
  Startup times for large OVN dbs is greatly increased by frozen_row()
  calls

Status in neutron:
  In Progress

Bug description:
  On a large OVN DB, frozen_row() calls for the event notification
  processing can add 10ms up to 40ms or more depending on the size of
  the row (as compared to 4usec for just passing the Row object). This
  can easily make startup times w/ large DBs increase by a factor of 3
  or more.

  We are currently calling frozen_row() for every event, but we really
  only need it for the events that we have registered.

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