/etc/samba/smb.conf
[global]
socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192
/home/<user>/.smb/smb.conf
[global]
socket options = TCP_NODELAY IPTOS_LOWDELAY SO_RCVBUF=65536 SO_SNDBUF=65536
/etc/samba/smb.conf
[global]
socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192
/home/<user>/.smb/smb.conf
[global]
socket options = TCP_NODELAY IPTOS_LOWDELAY SO_RCVBUF=65536 SO_SNDBUF=65536