Guess you should multiply 27 by bs=4k?

Jason


2014-08-29 15:52 GMT+08:00 lixue...@chinacloud.com.cn <
lixue...@chinacloud.com.cn>:

>
> guys:
>     There's a ceph cluster working and nodes were connected with  10Gb
> cable. We defined  fio's  bs=4k and the object size of rbd is 4MB.
> Client node was connect with the cluster via 1000Mb cable. Finally the
> IOPS is 27 ,when we control the latency of fio under 20ms. 4MB*27=108MB
> nearly  1000Mb,so  is it reasonable?
> ------------------------------
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