Could you share the fio command and your read_ahead_kb setting for the OSD devices ? "performance is better" is a little too general. I understand that we usually mean higher IOPS or higher aggregate throughput when we say performance is better. However, application random read performance "generally" implies an interest in lower latency - which of course is much more involved from a testing perspective.
Cheers
Wade
On Tue, Feb 2, 2016 at 7:28 AM min fang <louisfang2013@xxxxxxxxx> wrote:
_______________________________________________Hi, I did a fio testing on my ceph cluster, and found ceph random read performance is better than sequential read. Is it true in your stand?Thanks.
ceph-users mailing list
ceph-users@xxxxxxxxxxxxxx
http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
_______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
