Il 08/05/2014 09:24, Mike Perez ha scritto:
On 10:08 Wed 07 May , Stefan Hajnoczi wrote:
On Tue, May 06, 2014 at 04:13:50PM -0700, Mike Perez wrote:
I would like be able to configure virtio-scsi options num_queues, max_sectors,
and cmd_per_lun via libvirt. Are there any plans to have this support?
Hi Mike,
I'm not sure about the status of libvirt support for virtio-scsi options
but in the meantime you can use <qemu:commandline> passthrough:
http://blog.vmsplice.net/2011/04/how-to-pass-qemu-command-line-options.html
Stefan
Thanks Stefan,
My plan is to write the support in OpenStack, which unfortunately does not
accept patches doing qemu passthrough:
http://lists.openstack.org/pipermail/openstack-dev/2013-November/018551.html
Why do you need such fine-grained control? The higher you go in the
stack, the simpler configuration should be in my opinion.
For openstack, I think all you need is a singlequeue vs. multiqueue knob
(setting num_queues = # VCPUs for multiqueue).
Paolo
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