[Bug 1281366] Re: ip command becomes slower with large number of network devices

[Launchpad Bug Tracker]

This bug was fixed in the package iproute - 20111117-1ubuntu2.3

---------------
iproute (20111117-1ubuntu2.3) precise; urgency=medium

  * Fix ip netns scaling issues for 1000s of routers. (LP: #1281366)
 -- Rafael David Tinoco <rafael.tinoco at canonical.com>   Tue, 15 Apr 2014 14:05:33 -0500

** Changed in: iproute (Ubuntu Precise)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1281366

Title:
  ip command becomes slower with large number of network devices

Status in “iproute” package in Ubuntu:
  Fix Released
Status in “iproute” source package in Precise:
  Fix Released
Status in “iproute” source package in Quantal:
  Won't Fix

Bug description:
  [Impact]
  When using iproute commands with a large number of network devices (virtual ethernet adapters, etc) iproute performance becomes much slower.

  [Test Case]
  1) Download attached 'make_fake_routers.sh' and 'parse.py' scripts.
  2) ./make_fake_routers.sh 3000 ip > results
  3) ./parse.py results

  You should be able to graph and clearly see a performance improvement
  with the fix than without it.

  [Regression Potential]
  This patch fixes the issue:
  https://git.kernel.org/cgit/linux/kernel/git/shemminger/iproute2.git/commit/?id=f0124b0f0aa0e5b9288114eb8e6ff9b4f8c33ec8
  This patch is upstream and is currently in saucy and beyond.

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