On Tue, Jul 17, 2012 at 12:54 PM, Michael S. Tsirkin <mst@xxxxxxxxxx> wrote: >> Knowing the answer to that is important before anyone can say whether >> this approach is good or not. >> >> Stefan > > Why is it? Because there might be a fix to kvmtool which closes the gap. It would be embarassing if vhost-blk was pushed just because no one looked into what is actually going on. And on the flipside, hard evidence of an overhead that cannot be resolved could be good reason to do more vhost devices in the future. Either way, it's useful to do this before going further. Stefan -- 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