[sheepdog-users] cache write speed is high only at the first boot
namei.unix at gmail.com
Thu Aug 15 10:11:37 CEST 2013
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
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