Libvirt: AIO mode for disk devices

Registered by Alexander Schmidt on 2015-10-07

Nova should pick the asynchronous IO (AIO) mode for disk devices that works best for the underlying storage hardware/software stack.

Libvirt/qemu offers a choice between userspace threads and native kernel AIO.

Blueprint information

Status:
Complete
Approver:
John Garbutt
Priority:
Low
Drafter:
Alexander Schmidt
Direction:
Approved
Assignee:
Alexander Schmidt
Definition:
Approved
Series goal:
Accepted for mitaka
Implementation:
Implemented
Milestone target:
milestone icon mitaka-3
Started by
John Garbutt on 2015-12-04
Completed by
Alexander Schmidt on 2016-01-22

Related branches

Sprints

Whiteboard

Gerrit topic: https://review.openstack.org/#q,topic:bp/libvirt-aio-mode,n,z

Addressed by: https://review.openstack.org/232514
    Libvirt: AIO mode for disk devices

Addressed by: https://review.openstack.org/247396
    WIP libvirt: use native AIO mode for image backends

Addressed by: https://review.openstack.org/251829
    WIP libvirt: use native AIO mode for cinder volumes

Addressed by: https://review.openstack.org/253562
    Update AIO mode spec with recent comments

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Work Items

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