For realistic measure use oflag=direct On Fri, Oct 21, 2011 at 5:55 AM, Erik Schwalbe <erik.schwalbe at canoo.com>wrote: > > Hello, > > I installed a trial version of Gluster Storage Software Appliance last > week. > At the moment I do some performance tests on the server. > I use Ubuntu Server 11.10 as OS. > Hardware (2x): > -AMD Opteron Quad Core 2.2GHz > -16GB RAM > -12x WD 2TB HDD @ 7200rpm > -10Gbit link between the servers > > I use zfs as filesystem. > Glusterfs version 3.2.1, but I also installed 3.2.4 for testing (same > behaviour). > > ZFS is mounted to /data: > dd if=/dev/zero of=/data/LUN0 bs=1M count=20240 > 21223178240 Bytes (21 GB) kopiert, 13.6647 s, 1.6 GB/s > > create a glusterfs volume (without replication for testing local speed): > gluster volume create test-volume san0:/data/test-volume > > and mount: > mount -t glusterfs san0:/test-volume /mnt > > dd if=/dev/zero of=/mnt/LUN0 bs=1M count=20240 > 21223178240 Bytes (21 GB) kopiert, 79.0924 s, 268 MB/s > > I also do some tests with bonnie++. The result you can find as attachment. > > As you can see, glusterfs mount is much slower than the local zfs mount. > During the dd and bonnie++ tests (glusterfs mount) the cpu load for > glusterd and glusterfs processes is much more than 100% (150%-170%) > > Is this the normal behaviour of glusterfs?? Or Is the Quad core cpu to > slow?? > > Thank you for help. > > Regards, > Erik Schwalbe > > > [image: Canoo Engineering AG - your provider for business web solutions]<http://www.canoo.com/> > Erik Schwalbe > Canoo Engineering AG > Kirschgartenstrasse 5 > CH-4051 Basel > Tel: +41 61 228 94 44 > Fax: +41 61 228 94 49 > erik.schwalbe at canoo.com > http://www.canoo.com > > > > > _______________________________________________ > Gluster-users mailing list > Gluster-users at gluster.org > http://gluster.org/cgi-bin/mailman/listinfo/gluster-users > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://gluster.org/pipermail/gluster-users/attachments/20111031/baa39ca8/attachment.htm>