On Thu, 6 Oct 2022 at 06:14, Richard W.M. Jones <rjones@xxxxxxxxxx> wrote: > > On Tue, Oct 04, 2022 at 09:53:32AM -0400, Stefan Hajnoczi wrote: > > qemu-nbd doesn't use io_uring to handle the backend IO, > > Would this be fixed by your (not yet upstream) libblkio driver for > qemu? I was wrong, qemu-nbd has syntax to use io_uring: $ qemu-nbd ... --image-opts driver=file,filename=test.img,aio=io_uring The new libblkio driver will also support io_uring, but QEMU's built-in io_uring support is already available and can be used as shown above. Stefan
