On Fri, Jan 06, 2017 at 10:07:05AM -0800, Josh Berkus wrote: > On 01/05/2017 05:15 PM, Jeremy Eder wrote: > > On Thu, Jan 5, 2017 at 7:22 PM, Josh Berkus <jber...@redhat.com > > <mailto:jber...@redhat.com>>wrote: > > > > Also, performance is MUCH better on PostgreSQL pgbench than devicemapper > > is. Like 3X better. > > > > > > Details please? Were you using the loopback dm driver? > > I was using whatever is the default with Atomic docker-storage-setup.
By default on atomic, docker-storage-setup should thin pool from free space in volume group. (no loopback stuff). Vivek