Hi! I've deployed glusterfs on 2 nodes using replication mode and done some tests. Peroformance drop was significant and I've no idea if its possible to improve it or not. Volume was mounted on one of nodes using both FUSE and NFS glusterfs clients. 1.1G of small files are stored on volume. To make command shorter M symbol is used as mountpoint label. Native performance is performance of command issued over native FS on one of the bricks. No other activities on both node happened. Here is the results per command: dd if=/dev/zero of=M/tmp bs=1M count=16384 69.2 MB/se (Native) 69.2 MB/sec(FUSE) 52 MB/sec (NFS) dd if=/dev/zero of=M/tmp bs=1K count=163840000 88.1 MB/sec (Native) 1.1MB/sec (FUSE) 52.4 MB/sec (NFS) time tar cf - M | pv > /dev/null 15.8 MB/sec (native) 3.48MB/sec (FUSE) 254 Kb/sec (NFS) I use default configuration, no adjustments to /etc/gluster* where made. I use ext4 on bricks.
