On Sun, Oct 30, 2016 at 5:40 AM, Bill WONG <wongahshuen@xxxxxxxxx> wrote: > any ideas or comments? Can you set "rbd non blocking aio = false" in your ceph.conf and retry librbd? This will eliminate at least one context switch on the read IO path -- which result in increased latency under extremely low queue depths. -- Jason _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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