On Fri, Oct 14, 2011 at 9:33 AM, Stefan Hajnoczi <stefanha@xxxxxxxxx> wrote: > The next step is trying QEMU's -drive aio=native, which uses Linux AIO > instead of a custom userspace threadpool for doing I/O. It is usually > faster. The libvirt domain XML is: > > <disk ...> > <driver name='qemu' type='raw' io='native'> Will do so. Thanks for your help :D ! > If you have the time, trying a recent kernel and qemu-kvm could yield > better results. Your guest configuration is already reasonable and I > would choose a similar setup. > > You mentioned vhost - it's an in-kernel virtio implementation but > currently only available for virtio-net in a kernel release. There are > experimental vhost-blk patches on the kvm mailing list but they are not > merged and folks are currently playing with them to see how much > performance could be gained. Good to know Thanks, Benoit. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
