[Samba] Slow samba transfer

[Aaron Kincer]

What environment are you doing this in? In other words, is this over a 
wireless connection to a remote site? Perhaps something else?

As a general rule of thumb, SMB is a MUCH less efficient protocol than 
others such as FTP. In a near perfect world (i.e. a controlled real 
world setting), I've found SMB to be between 35% and 45% as fast as FTP. 
This was independent of operating system.

If you are doing SMB over a wireless link, it can be even worse if you 
have a problematic wireless connection that requires lots of 
retransmits. I'm betting you are doing this over wireless and you've got 
some serious interference or other issues going on. Am I even close?

Roberto su tiscali wrote:
> Thats the diagnosis:
> transfering the same file via smb, scp and ftp I got big speed 
> differences.
> SMB:
> file : 1Gb, transfer rate 15-35 kb/s
> SCP:
> file : 1Gb, transfer rate 360-780 kb/s
> FTP:
> file : 1Gb, transfer rate 360-780 kb/s
>
>
> Why is via smb so slow?
> Attachment is my own smb:conf, the same that's on air.
>
>
> [global]
> workgroup = NO1KNOWS
> netbios name = PBT
>    server string = Samba %v, File server
> ;   wins support = no
> ;   wins server = w.x.y.z
>    dns proxy = no
>    os level = 64
> ;   name resolve order = lmhosts host wins bcast
>    log file = /var/log/samba/log.%m
>    max log size = 50
> ;   syslog only = no
>    syslog = 0
>    panic action = /usr/share/samba/panic-action %d
>
> ####### Authentication #######
>    security = user
>    encrypt passwords = yes
> passdb backend = tdbsam guest
>    obey pam restrictions = yes
> ;   guest account = nobody
>    invalid users = root
> unix password sync = yes
> passwd program = /usr/bin/passwd %u
> passwd chat = *Enter\snew\sUNIX\spassword:* %n\n 
> *Retype\snew\sUNIX\spassword:* %n\n .
> ;   pam password change = no
>   socket options = TCP_NODELAY IPTOS_LOWDELAY SO_SNDBUF=8192 
> SORCVBUF=8192
> local master = yes
>    domain master =yes
>
> #Other stuff ;-))
> domain logons = yes
> hosts allow = 127.0.0.1 192.168.1.0/255.255.255.0 
> 192.168.2.0/255.255.255.0 192.168.3.0/255.255.255.0
> logon home = \\%L\%U\.profile
> logon path = \\%L\profile\%U
> logon drive = H:
> logon script = netlogon.bat
>
> [homes]
>    comment = Home Directories
>    browseable = no
>    writable = yes
>    create mask = 0700
>    directory mask = 0700
>
> [profile]
> path = /home/samba/profile
> writable = yes
> browsable = no
> create mask = 600
> directory mask = 700
>
> # Un-comment the following and create the netlogon directory for 
> Domain Logons
> # (you need to configure Samba to act as a domain controller too.)
>
> [netlogon]
>    comment = Network Logon Service
>    path = /home/samba/netlogon
>    read only = yes
>    write list = @admin
>    guest ok = no
>    writable = no
>    share modes = no
>    browsable = no
> [Tutto]
>    path = /mnt/
>    writable = yes
>    directory mask = 0754
>    browseable = yes
> #   read only = yes
>    guest ok = yes
>
>
> [Condivisa]
>    path = /shared/
>    writable = yes
>    directory mask = 0774
>    browseable = yes
> #   read only = yes
>    guest ok = yes
>
> Help a honest worker!
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