On Tue, Mar 26, 2013 at 07:34:43PM +0000, Richard W.M. Jones wrote: > > BTW, I'd be interested in tips on what software/techniques people use > for benchmarking qemu block devices. > > So far I've been testing this by booting various guests and timing how > long they take to reach various stages (eg. graphical login), but this > has not proven to be reproducible.
Running fio inside the guest is the way to go for real benchmarking: http://freecode.com/projects/fio For quick benchmarks you could use one more more dd(1) processes: dd if=/dev/vdb of=/dev/null iflag=direct bs=64k Stefan
