An In-Kernel Virtio Block Device Accelerator For Linux
Phoronix: An In-Kernel Virtio Block Device Accelerator For Linux
For the past several months there has been work on vhost-blk, an in-kernel virito-blk device accelerator. This kernel-based accelerator can provide measurable speed-ups for disk/block device access by virtualized guest machines...
Nice! I think I/O is my biggest bottleneck when running W7 under QEMU, despite using virtio.
I may have setup my virtual machine wrong, but I notice the same on my xubuntu VM. IO is really a dog.