One of the new features in Qemu 2.7[1] is * virtio-blk now supports multiqueue through a "num-queues" device property. We use virtio-blk in our OpenStack cluster to expose RBD volumes to Qemu/KVM VMs. Can RBD-backed virtio-blk benefit from multiple queues? (I'm hopeful because virtio-scsi had multi-queue support for a while, and someone reported increased IOPS even with RBD devices behind those.) -- Simon. [1] http://wiki.qemu.org/ChangeLog/2.7 _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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