Re: cephfs performance

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On Tue, Jul 18, 2017 at 9:07 AM, sheng qiu <herbert1984106@xxxxxxxxx> wrote:
> ceph version is v11.2, no special config changes, just some regular
> configurations for filestore backend.
>
> Fio is using libaio, with direct=1, running 4KB block size.

Don't use direct I/O unless you want to benchmark synchronous I/O:
http://lists.ceph.com/pipermail/ceph-users-ceph.com/2017-July/019478.html

-- 
Patrick Donnelly
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