On Wednesday 29 April 2009, Christoph Hellwig wrote: > On Tue, Apr 28, 2009 at 11:37:01AM -0500, Anthony Liguori wrote: > > Ah, excellent. I think that's a great thing to do. So do you think > > virtio-scsi would deprecate virtio-blk? > > I don't think so. If you have an image format or a non-scsi blockdevice > underneath virtio-block avoids the encoding into SCSI CDBs and back and > should be faster.
Is this actually measurably faster, or just infinitesimally faster in theory? I can maybe see that virtio-blk is slightly simpler for dumb drivers, though even then a basic scsi host is pretty straightforward and I find it hard to believe there's much real benefit. Paul -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
