I've set up a NFS share on my Raspberry by installing @nfs-kernel-server@ and configuring the following export:
/media/hdd 192.168.1.0/24(rw,async)
I've mounted the share on a Ubuntu client using
192.168.1.51:/media/hdd /media/myuser/hdd nfs hard,intr,rsize=X,wsize=Y,proto=Z
and tried with several values for X, Y and Z. However, no matter what values I use, copying a large (~8GB) file to the share will start at ~45MB/s for the first ~800MB and suddenly drop to an appalling ~800KB/s and sometimes even freeze. What am I doing wrong? I am using Xbian 1.0 Beta 1.1.