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faster quantum-openvswitch-agent periodic reports
One of two patches that fixes bug #1194438. Instead of spawning ovs-vsctl for every port on br-int, we just dump the required columns from the Interfaces table and grab the rows that we need. This is a big win because the time it takes for ovs-vsctl to connect to the openvswitch controller is orders of magnitude greater than the time it takes to parse the rows. In practice, instead of taking roughly 1s per interface, the agent's periodic task only takes 1s in total. Change-Id: Idbf32c38e0c4a9c9634c1e4f0e79bd556b720493 (cherry picked from commit 364e97b)
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Peter Feiner
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Édouard Thuleau
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Jul 3, 2013
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