On Tue, Jan 14, 2014 at 10:38 PM, Blaster <[email protected]> wrote: > On 1/14/2014 11:04 AM, Andrew Cathrow wrote: >> >> Did you compare virtio-block to virto-scsi, the former will likely >> outperform the latter. > > > No, but I have been meaning to, out of curiosity. > > But why do you say virto-blk will be faster than virtio-scsi? The > virtio-scsi wiki claims equal performance. That's also what I read but ... this presentation: http://www.linux-kvm.org/wiki/images/f/f9/2012-forum-virtio-blk-performance-improvement.pdf claims claims: "virtio-blk is about ~3 times faster than virtio-scsi in my setup" o_O So testing is definitely a good idea. > > I've been trying to get some real numbers of the performance differences > using iozone, but the numbers are all over the place, both on the HV and the > guests, so not very meaningful. Not an iozone expert, so still trying to > figure out what I'm doing wrong there as well.
I've also done some (relatively simple) testing with fio. _______________________________________________ Users mailing list [email protected] http://lists.ovirt.org/mailman/listinfo/users
