Comment 7 for bug 1505196

Reviewed: https://review.openstack.org/233655
Committed: https://git.openstack.org/cgit/stackforge/networking-hyperv/commit/?id=2abeee743ca02b1263bf7fdea36509bab52b23d8
Submitter: Jenkins
Branch: master

commit 2abeee743ca02b1263bf7fdea36509bab52b23d8
Author: Claudiu Belu <email address hidden>
Date: Mon Oct 12 15:58:23 2015 +0300

    Caches switch port, VLAN, VSID setting data WMI objects

    The Hyper-V Neutron Agent, during its first loop, will iterate
    over all the switch ports, checking their proper setup. In order
    to avoid wasting time querying the necessary WMI objects for each
    port, they are cached first.

    Initialises the cache for the mentioned objects. Thus, they will be
    retrieved from the cache while processing 'foo' port.

    This will also improve the general performance of the agent.

    Partial-Bug: #1505196

    Change-Id: I5a70600ffdb1aa29d113972f13485bbbb3138a47