Hello, On 21/12/2015 04:47, Yan, Zheng wrote: > fio tests AIO performance in this case. cephfs does not handle AIO > properly, AIO is actually SYNC IO. that's why cephfs is so slow in > this case. Ah ok, thanks for this very interesting information. So, in fact, the question I ask myself is: how to test my cephfs to know if I have correct (or not) perfs as regard my hardware configuration? Because currently, in fact, I'm unable to say if I have correct perf (not incredible but in line with my hardware configuration) or if I have a problem. ;) -- François Lafont _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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