SSD IO performance

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi ,

you should definitely increase the speed of the network. 100Mbit/s is
way too slow for all use cases I could think of, as it results in a
maximum data transfer of less than 10 Mbyte per second, which is
slower than a usb 2.0 thumb drive.

Best,
Karsten

2015-05-26 15:53 GMT+02:00 lixuehui555 at 126.com <lixuehui555 at 126.com>:
>
> Hi ALL:
>     I've built a ceph0.8 cluster including 2 nodes ,which  contains 5
> osds(ssd) each , with 100MB/s network . Testing a rbd device with default
> configuration ,the result is no ideal.To got better performance ,except the
> capability of random r/w  of  SSD, which should to give a change?
>
>     2 nodes  5 osds(SSD) *2  , 1 mon, 32GB RAM
>     100MB/S network
> and now the whole iops is just 500 . Should we change the filestore or
> journal part ? Thanks for any help!
>
> ________________________________
> lixuehui555 at 126.com
>
> _______________________________________________
> ceph-users mailing list
> ceph-users at lists.ceph.com
> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
>


[Index of Archives]     [Information on CEPH]     [Linux Filesystem Development]     [Ceph Development]     [Ceph Large]     [Linux USB Development]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [xfs]


  Powered by Linux