On Tue, Aug 26, 2014 at 11:15 PM, John Ferlan <jferlan@xxxxxxxxxx> 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 -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list