On Sat, 27 Dec 2014 06:02:32 PM you wrote: > Are you able to separate log with data in your setup and check the > difference? Do you mean putting the OSD journal on a separate disk? I have the journals on SSD partitions, which has helped a lot, previously I was getting 13 MB/s Its not a good SSD - Samsung 840 EVO :( one of my plans for the new year is to get SSD's with better seq write speed and IOPS I've been trying to figure out if adding more OSD's will improve my performance, I only have 2 OSD's (one per node) > So, depending on type of your benchmark > (sync/async/IOPS-/bandwidth-hungry) you may win something just for > crossing journal and data between disks (and increase failure domain > for a single disk as well ). One does tend to foxus on raw seq read/writes for becnhmarking, but my actual usage is solely for hosting KVM images, so really random R/W is probably more important. -- Lindsay
Attachment:
signature.asc
Description: This is a digitally signed message part.
_______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
