27 Aug
2014
27 Aug
'14
6:18 p.m.
On Tue, Aug 26, 2014 at 11:15 PM, John Ferlan <jferlan@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