http://www.samba.org/samba/docs/man/manpages-3/smb.conf.5.html
網路上討論 Samba 效能的設定值：Faster Samba (SMB / CIFS) Share Performance
strict allocate = Yes
read raw = Yes
write raw = Yes
strict locking = No
socket options = TCP_NODELAY IPTOS_LOWDELAY SO_RCVBUF=131072 SO_SNDBUF=131072
min receivefile size = 16384
use sendfile = true
aio read size = 16384
aio write size = 16384
