Hi list,
There is a client io section from the result of ceph -s. I found the value of 
it is kinda confusing.
I am using fio to test rbd seq write performance with 4m block.The throughput 
is about 2000MB/s and fio shows the iops is 500.But from the ceph -s client io 
section the throughput is about 2000MB/s too but the iops is not 
constantly,iops of the client io section keeps increasing from 1000iops to 
2000iops.And I found as the iops increased the throughput get lower(about 
10-20% ).
What the reason of the iops from ceph -s client io section to behave like this?


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