1

Why is the smb transfer performance much lower than the ftp performance? I am connected to WiFi 5g, in the same point and I am trying to transfer the same file using the two different protocols, at different times. There is nothing else that is using the network. The file I am transferring is present in the ssd connected to the USB 3.0 port of the beryl.

IMG_20220810_205630
IMG_20220810_2056301080×2400 169 KB

IMG_20220810_205534
IMG_20220810_2055341080×2400 169 KB

2

Is there any procedure to speed up the samba protocol?

3

At first you are comparing the simple FTP with the more complex SMB protocol. In general the rabbit will always be faster than the turtle … but okay.
You are comparing FTP, written after a RFC and tested well, with SMB, written by a huge tech company and still ‘only’ some kind of reverse engineered, today.

I am not familiar with the OpenWRT implementation of SMB, but lets try a little in the [global] section of your smb.conf:

  • TCP_NODELAY - Maybe more packet drops at the destination, but also the resended packages will be faster.
  • IPTOS_LOWDELAY - the same, but for the transport.
  • SO_SNDBUF or SO_RCVBUF - Yeah, just try what are suitable values for your setup. Try not essential more than your OS can handle.
  • does OpenWRT Samba knows SO_SNDLOWAT?
  • Samba is using caching (the thing, that drives everybody insane while calculating the ETA for a download) … Mabe oplocks will help.

Something like this should be the outcome:

[global] 
	log level = 0
	socket options = TCP_NODELAY IPTOS_LOWDELAY 
	read raw = yes
	write raw = yes
	oplocks = yes
	max xmit = 65535
	dead time = 15
	getwd cache = yes
	lpq cache = 30
[some share] 
	oplocks = no

But again, I’m not a samba expert, I try to avoid it, whenever possible,

4

This is the global section of my smb.conf file:

[global]
	netbios name = GL-MT1300 
	display charset = UTF-8
	interfaces = lo br-lan 
	server string = GL-MT1300-212
	unix charset = UTF-8
	workgroup = WORKGROUP
	browseable = yes
	deadtime = 30
	domain master = yes
	encrypt passwords = true
	enable core files = no
	guest account = nobody
	guest ok = yes
	invalid users = root
	local master = yes
	load printers = no
	map to guest = Bad User
	max protocol = SMB2
	min receivefile size = 16384
	null passwords = yes
	obey pam restrictions = yes
	os level = 20
	passdb backend = smbpasswd
	preferred master = yes
	printable = no
	security = share
	smb encrypt = disabled
	smb passwd file = /etc/samba/smbpasswd
	socket options = TCP_NODELAY IPTOS_LOWDELAY
	syslog = 2
	use sendfile = yes
	writeable = yes
5

First can test in the PC samba client operate, may be the samba client APP read/write affect.

Also can config the /etc/samba/smb.conf.template
set the socket read/wrte cache size, as:

socket options = TCP_NODELAY IPTOS_LOWDELAY SO_RCVBUF=65536 SO_SNDBUF=65536
read raw = yes
write raw = yes
large readwrite = yes
getwd cache = yes
write cache size = 262144