Hi Christian, On 22.09.2014 05:36, Christian Balzer wrote: > Hello, > > On Sun, 21 Sep 2014 21:00:48 +0200 Udo Lembke wrote: > >> Hi Christian, >> >> On 21.09.2014 07:18, Christian Balzer wrote: >>> ... >>> Personally I found ext4 to be faster than XFS in nearly all use cases >>> and the lack of full, real kernel integration of ZFS is something that >>> doesn't appeal to me either. >> a little bit OT... what kind of ext4-mount options do you use? >> I have an 5-node cluster with xfs (60 osds), and perhaps the performance >> with ext4 would be better?! > Hard to tell w/o testing your particular load, I/O patterns. > > When benchmarking directly with single disks or RAIDs it is fairly > straightforward to see: > http://lists.ceph.com/pipermail/ceph-users-ceph.com/2014-April/028540.html > > Also note that the actual question has never been answered by the Ceph > team, which is a shame as I venture that it would make things faster. do you run your cluster without "filestore_xattr_use_omap = true" or with due missing answer (to be on the safe side)?? Udo
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