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[OpenStack Infra <1525423@xxxxxxxxxxxxxxxxxx>]

Reviewed:  https://review.openstack.org/256846
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=806e67538fbea49530aa0eedb75694cd8bad439d
Submitter: Jenkins
Branch:    master

commit 806e67538fbea49530aa0eedb75694cd8bad439d
Author: Kevin Benton <blak111@xxxxxxxxx>
Date:   Fri Dec 11 10:55:38 2015 -0800

    Batch db segment retrieval
    
    A net-list operation was calling extend_network_dict_provider for
    each network individually which would result in a database call for
    each network.
    
    This adds a new call in the manager to extend multiple networks at
    once and then it adds a bulk version of get_network_segments that
    it calls.
    
    Now 1 net list of any number of networks will only result in 1
    segment DB call.
    
    Change-Id: I2543b3bdbb178ee4bb8d1288e9a27af1c5c8c8b4
    Closes-Bug: #1525423
    Partial-Bug: #1513782


** Changed in: neutron
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1525423

Title:
  get_networks performance hindered by segment lookups

Status in neutron:
  Fix Released

Bug description:
  During the get_networks method of ML2, we iterate over each network
  and do a database call to lookup the segments for that network. This
  scales the number of database calls linearly with the number of
  retrieved networks.

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