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[Kamal Mostafa <kamal@xxxxxxxxxxxxx>]

** Changed in: linux (Ubuntu Xenial)
       Status: In Progress => Fix Committed

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https://bugs.launchpad.net/bugs/1592809

Title:
  Restore irqfd fast path for PPC

Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  Fix Committed
Status in linux source package in Yakkety:
  Fix Released

Bug description:
  Dear Canonical,

  A patch is now upstream to restore the irqfd fast path for Power, can
  this be pulled into a 16.04.1? It was found to significantly help
  guest small msg rate networking performance by ~30%.

  Commit id:
  b1a4286b8f3393857a205ec89607683161b75f90

    KVM: PPC: Book3S HV: Re-enable XICS fast path for irqfd-generated
  interrupts

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