[Samba] Samba performance issues (compared win2k)

[Isaac Ojeda Llebry]

We're running samba in our organization to serve files in a LAN to windows 
machines (almost XP), and we're having some performance issues with small 
files. With big files (ie, ISO images), it works pretty well. But, when small 
files are involved in the transference, problems arise. In the same 
environment, a Windows 2000 machine (the 'old' server) is able to send data 
to clients nearly at double speed.

We've tried to change some parameters to make the performance better but... no 
way.

So, we're looking for any idea or a point to start to search for some 
additional info.

We are using in a Samba-3.0.7-1.3E, Linux AS 3 Update 4 box, with the Red 
Hat's kernel 2.4.21-15.0.3.ELsmp.

Configuration is as follow:

# Global parameters
[global]
        workgroup = OURWORKGROUP
        server string = Software Server
        interfaces = eth1
        auth methods = guest, sam, winbind
        map to guest = Bad User
        null passwords = Yes
        guest account = ouruser
        passwd program = /usr/bin/passwd %u
        passwd chat = *New*UNIX*password* %n\n *ReType*new*UNIX*password* %n\n 
*passwd:*all*authentication*tokens*updated*successfully*
        username map = /etc/samba/smbusers
        log file = /var/log/samba/smbd.log
        max log size = 10240
        max xmit = 65535
        dns proxy = No
        wins server = 192.168.10.10
        ldap ssl = no
        create mask = 0775
        hosts allow = 127., 192.168.
        cups options = raw
        socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192 
IPTOS_LOWDELAY


-- 
Isaac Ojeda Llebry
Servicio de Informática y Comunicaciones de la ULPGC
e-mail: iojeda en becarios.ulpgc.es
Teléfono: +34 928 459568