On Mon, Jun 18, 2012 at 04:03:23PM +0800, Asias He wrote: > On 06/18/2012 03:46 PM, Rusty Russell wrote: > >On Mon, 18 Jun 2012 14:53:10 +0800, Asias He <asias@xxxxxxxxxx> wrote: > >>This patch introduces bio-based IO path for virtio-blk. > > > >Why make it optional? > > request-based IO path is useful for users who do not want to bypass > the IO scheduler in guest kernel, e.g. users using spinning disk. > For users using fast disk device, e.g. SSD device, they can use > bio-based IO path. OK I guess but then it should be per-device. There could be a mix of slow and fast disks :) > -- > Asias > _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
