----- Original Message ----- > From: "Lars Hanke" <debian@xxxxxxxxx> > To: gluster-users@xxxxxxxxxxx > Sent: Wednesday, February 18, 2015 3:01:54 PM > Subject: Poor Gluster performance > > I set up a distributed, replicated volume consisting of just 2 bricks on > two physical nodes. The nodes are peered using a dedicated GB ethernet > and can be accessed from the clients using a separate GB ethernet NIC. > > Doing a simple dd performance test I see about 11 MB/s for read and > write. Running a local setup, i.e. both bricks on the same machine and > local mount, I saw even 500 MB/s. So network sould be the limiting > factor. But using NFS or CIFS on the same network I see 110 MB/s. > > Is gluster 10 times slower than NFS? Something is going on there. On my gigabit setups I see 100-120 MB / sec writes for pure distribute and about 45-55 MB / sec with replica 2. What block size are you using? I could see that if you were writing something like 4k or under but 64k and up you should be getting about what I said. Can you tell me more about your test? -b > > Gluster version is 3.6.2. > > Thanks for your help, > - lars. > _______________________________________________ > Gluster-users mailing list > Gluster-users@xxxxxxxxxxx > http://www.gluster.org/mailman/listinfo/gluster-users > _______________________________________________ Gluster-users mailing list Gluster-users@xxxxxxxxxxx http://www.gluster.org/mailman/listinfo/gluster-users
