Il 31/10/2012 15:20, Markus Armbruster ha scritto: > One more thing: on a *major* upgrade, I'd rather deal with immediately > obvious breakage (does not boot) than rotten performance. > > If we make "q35 with compat IDE" the default, we'll have to tell users > many, many times not to use the default :(
Well, compat IDE is not on the same league as writethrough for bad performance, and virtio is anyway the better choice (and not available just with a different machine type). If they complain we should send them to virtio just as likely. And perhaps we should send them straight to libvirt and libosinfo. Because in some time we'll probably have the same problem with virtio-scsi vs. virtio-blk (features vs. performance), and externalizing the decision is the only sane thing to do. Paolo
