Hi All, I have a galera cluster running on openstack with data on ceph volumes capped at 1500 iops for read and write ( 3000 total ). I can’t understand why with fio I can reach 1500 iops without IOwait and MySQL can reach only 150 iops both read or writes showing 30% of IOwait.
I tried with fio 64k block size and various io depth ( 1.2.4.8.16….128) and I can’t reproduce the problem. Anyone can tell me where I’m wrong? Thank you Regards Matteo _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
