[ceph-users] Re: Mapped rbd is very slow

- libaio randwrite - libaio randread

- libaio randwrite on mapped rbd - libaio randread on mapped rbd

- rbd read - rbd write

recheck RBD with RAND READ / RAND WRITE you're again comparing RANDOM and NON-RANDOM I/O your SSDs aren't that bad, 3000 single-thread iops isn't the worst possible performance