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

[vitalif]

- 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
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