If it is because of replication then the iops in ceph status should be always
relatively stable and be the times of the replication size of the fio's iops.
From what I have saw the iops in ceph status keeps increasing overtime until it
is relatively stable.
2018-03-04
lin.yunfan
发件人：David Turner <[email protected]>
发送时间：2018-03-03 22:35
主题：Re: [ceph-users] how is iops from ceph -s client io section caculated?
收件人："shadow_lin"<[email protected]>
抄送："ceph-users"<[email protected]>
I would guess that the higher iops in ceph status are from iops calculated from
replication. fio isn't aware of the backend replication iops, only what it's
doing to the rbd
On Fri, Mar 2, 2018, 11:53 PM shadow_lin <[email protected]> wrote:
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?
2018-03-03
lin.yunfan
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