Public bug reported:
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
** Affects: linux (Ubuntu)
Importance: Undecided
Assignee: Taco Screen team (taco-screen-team)
Status: New
** Tags: architecture-ppc64le bugnameltc-142629 severity-medium
targetmilestone-inin16041
** Tags added: architecture-ppc64le bugnameltc-142629 severity-medium
targetmilestone-inin16041
** Changed in: ubuntu
Assignee: (unassigned) => Taco Screen team (taco-screen-team)
** Package changed: ubuntu => linux (Ubuntu)
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https://bugs.launchpad.net/bugs/1592809
Title:
Restore irqfd fast path for PPC
Status in linux package in Ubuntu:
New
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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