Simple but clever way of ensuring that NVMe's deep queues aren't starved of work to do. But doesn't this suggest that Ceph needs optimizing or tuning for NVMe? Could you not have tweaked OSD parameters to ensure more threads / IO operations in parallel and have the same effect? On 23/11/15 18:37, Blinick, Stephen L wrote: > This link points to a presentation we did a few weeks back where we used NVMe devices for both the data and journal. We partitioned the devices multiple times to co-locate multiple OSD's per device. The configuration data on the cluster is in the backup. > > http://www.slideshare.net/Inktank_Ceph/accelerating-cassandra-workloads-on-ceph-with-allflash-pcie-ssds > > Thanks, > > Stephen > -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
