On Wed, Aug 14, 2013 at 01:25:44PM +0200, Valerio Pachera wrote: > It's repeatable (0.7.0_rc0_54_g1cacbba). > > - Import a qcow2. > qemu-img convert -f qcow2 wheezy_template.qcow2 sheepdog:qcow2 > > - start the guest and run, as usual, dd > dd if=/dev/zero of=c bs=1M count 512 oflag=direct > > I get between 100 and 130 M/s. > > I turn off the guest and run it again. > No modification at all. > I'm stuck between 40 and 50 M/s. Could you check dd twice? I think the second dd will boost up Thanks Yuan |