Re: [libvirt] [PATCH v2 1/4] domain_conf: Introduce iothreads XML
On Tue, Aug 26, 2014 at 11:15 PM, John Ferlan <jferlan(a)redhat.com> wrote:
+ The content of this optional element defines the number
+ of IOThreads to be assigned to the domain for use by
+ virtio-blk-pci target storage devices. There should be
+ only 1 or 2 IOThreads per host CPU and 1 IOThread per
+ supported device.
Fine for now but in the future devices may support multiple IOThreads assigned.
This is necessary for multiqueue block layer support, where a storage
controller can submit I/O from multiple host CPUs at the same time.
Stefan