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[Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>]

** No longer affects: linux (Ubuntu Precise)

** Changed in: linux (Ubuntu Trusty)
     Assignee: (unassigned) => Joseph Salisbury (jsalisbury)

** Changed in: linux (Ubuntu Vivid)
     Assignee: (unassigned) => Joseph Salisbury (jsalisbury)

** Changed in: linux (Ubuntu Wily)
   Importance: Medium => High

** Changed in: linux (Ubuntu Wily)
     Assignee: (unassigned) => Joseph Salisbury (jsalisbury)

** Changed in: linux (Ubuntu)
     Assignee: (unassigned) => Joseph Salisbury (jsalisbury)

** Changed in: linux (Ubuntu Trusty)
       Status: Triaged => In Progress

** Changed in: linux (Ubuntu Vivid)
       Status: Triaged => In Progress

** Changed in: linux (Ubuntu Wily)
       Status: Triaged => In Progress

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https://bugs.launchpad.net/bugs/1494423

Title:
  Upstream commits for NUMA node performance in Hyper-V

Status in linux package in Ubuntu:
  Triaged
Status in linux-lts-trusty package in Ubuntu:
  New
Status in linux-lts-trusty source package in Precise:
  New
Status in linux source package in Trusty:
  In Progress
Status in linux source package in Vivid:
  In Progress
Status in linux source package in Wily:
  In Progress

Bug description:
  Microsoft has investigated networking with NUMA nodes and Hyper-V and
  found a number of areas where Linux performance could be corrected to
  be in line with other virtual machine types.

  Please include the following commits and their necessary prerequisites
  (which have been accepted upstream into the 4.2 kernel series) into
  the kernels for 15.10, 15.04, 14.04 (including HWE), and 12.04
  (including HWE):

  8/5 "Drivers: hv: vmbus: Further improve CPU affiliation logic" 
  https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3b71107d73b16074afa7658f3f0fcf837aabfe24

  8/5 "Drivers: hv: vmbus: Improve the CPU affiliation for channels"
  https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9f01ec53458d9e9b68f1c555e773b5d1a1f66e94

  6/12 "Drivers: hv: vmbus: Allocate ring buffer memory in NUMA aware fashion"
  https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=294409d20572e9bcf857328286433f851168d54a

  6/1 "Drivers: hv: vmbus: Implement NUMA aware CPU affinity for channels"
  https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1f656ff3fdddc2f59649cc84b633b799908f1f7b

  5/31 "hv_netvsc: Allocate the receive buffer from the correct NUMA node"
  https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0a726c2b499e390b1c1fc3092bd789f2192a2d03

  5/31 "hv_netvsc: Allocate the sendbuf in a NUMA aware way"
  https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5defde5946676ee23cd6a9d0e1de899410f4a33f

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