Hi, Hi, I guess the author here means that for random loads 100Mb network should generate 2500-3000 IOPS for 4k blocks. So the complaint is reasonable, I suppose. Regards, Vasily. On Tue, May 26, 2015 at 5:27 PM, Karsten Heymann <karsten.heymann at gmail.com> wrote: > Hi , > > you should definitely increase the speed of the network. 100Mbit/s is > way too slow for all use cases I could think of, as it results in a > maximum data transfer of less than 10 Mbyte per second, which is > slower than a usb 2.0 thumb drive. > > Best, > Karsten > > 2015-05-26 15:53 GMT+02:00 lixuehui555 at 126.com <lixuehui555 at 126.com>: > > > > Hi ALL: > > I've built a ceph0.8 cluster including 2 nodes ,which contains 5 > > osds(ssd) each , with 100MB/s network . Testing a rbd device with default > > configuration ,the result is no ideal.To got better performance ,except > the > > capability of random r/w of SSD, which should to give a change? > > > > 2 nodes 5 osds(SSD) *2 , 1 mon, 32GB RAM > > 100MB/S network > > and now the whole iops is just 500 . Should we change the filestore or > > journal part ? Thanks for any help! > > > > ________________________________ > > lixuehui555 at 126.com > > > > _______________________________________________ > > ceph-users mailing list > > ceph-users at lists.ceph.com > > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > > _______________________________________________ > ceph-users mailing list > ceph-users at lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.ceph.com/pipermail/ceph-users-ceph.com/attachments/20150526/50db8563/attachment.htm>
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