[Samba] smbclient transfer speed on solaris

Karoly VEGH karoly.vegh at bwin.org
Wed Mar 19 15:43:59 GMT 2008


I am trying to transfer data from a win2003 (OS=[Windows Server 2003
3790 Service Pack 2] Server=[Windows Server 2003 5.2]) to a solaris 10
(sun4v arch). smbclient version is 3.0.25a. 

Although this is a switched gigabit network (no firewalls/routers
inbetween), and even jumbo frames are set up on the relevant NICs on
both sides, I cannot transfer more than 35mbyte/s (40 peak) with
smbclient. The command line is: 

smbclient //<TARGET_IP>/<sharename>  -I <TARGET_IP> -A <auth_file>
-c'prompt; ls ; mget *;'

The diskwrites on the solaris box cannot be the bottleneck, tested it,
can write way more. 

I was wondering if anyone had an advice regarding performance tuning? 
According to our win-admins they can provide easily 60mbyte/s between
their windows servers. 

my smb.conf is pretty basic: 

root at asp1dbrac012:~# egrep -v ^'#|;' /etc/sfw/smb.conf 
   server string = Samba Server
   security = user
   log file = /var/samba/log/log.%m
   max log size = 50
   socket options = TCP_NODELAY 
   dns proxy = no 
root at asp1dbrac012:~# 

any help is appreciated, 



Karoly VEGH - System Engineer Unix
bwin Interactive Entertainment AG 
IT Operations Unix 
Tel: +43/664/8508069

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