Dear, is there any body compared the performance with leveldb between 0.80.5 and 0.85, In my pervious cluster(0.80.5), the average writting speed: 10MB- 15MB In current cluster(0.85), the average writting speed: 5M-8M what is going on ? will superblock of leveldb disk cause this ? -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.ceph.com/pipermail/ceph-users-ceph.com/attachments/20140910/cebd1252/attachment.htm>