Re: [Qemu-devel] is x-data-plane considered "stable" ?

[Alexandre DERUMIER]

Hi,
x-data-plane syntax is deprecated (should be remove in qemu 2.2),

it's using now iothreads

http://comments.gmane.org/gmane.comp.emulators.qemu/279118

 qemu -object iothread,id=iothread0 \
       -drive if=none,id=drive0,file=test.qcow2,format=qcow2 \
       -device virtio-blk-pci,iothread=iothread0,drive=drive0


I don't now about the stability, but here what is working and I have tested:

-live migration
-resizing
-io throttling
-hotplugging

I think block jobs (mirror,backup,...) don't work yet.


it's working with virtio-blk and virtio-scsi support is coming for qemu 2.2

Regards,

alexandre

----- Mail original -----

De: "Scott Sullivan" <address@hidden>
À: address@hidden
Envoyé: Jeudi 2 Octobre 2014 17:20:55
Objet: [Qemu-devel] is x-data-plane considered "stable" ?

Can anyone tell me if in any QEMU release x-data-plane is considered "stable"?

If its unclear, I am referring to the feature introduced in QEMU 1.4 for high 
performance disk I/O called virtio-blk data plane.

http://blog.vmsplice.net/2013/03/new-in-qemu-14-high-performance-virtio.html

I've tried searching docs, but can't find any mention if its still considered 
experimental or not in the latest QEMU releases.