[Samba] Samba 3.5 slow. Help with benchmarks !

live.fx live.fx.mail at gmail.com
Sun Mar 14 08:16:08 MDT 2010


Situation:

Server:
Linux OpenSUSE 11.2 x86 fileserver. 
Quad Core CPU,
2 Gb RAM, 
Raid 5 SMB-shared massive. 2TB

Samba 3.5.1

Clients:
16 Linux clients (OpenSUSE 11.2) - connect to server trough NFS.
8 Windows clients (5 Windows XP, 3 or 4 Windows 7).

Server - is member of windows Domain. (another server - controller)

Problem:
Linux clients have transfer (to SAMBA server) rates: from 50 MB/s to 100
MB/s - trough NFS. And always 100 MB/s - trough FTP. 

Windows clients have slow connections (To SAMBA server) - 13-14-15 MB/s and
sometimes 30-40 MB/s. Windows 7 clients is little bit faster. 

Windows - to - Windows connection is 70 - 80 MB/s. This looks like SAMBA is
slow for work with windows clients.

My smb.conf:

[global]
log level = 1
debug level = 0
max log size = 50

#use sendfile = yes
#read prediction = true
#read size = 65536
#strict locking = No

strict sync = No
sync always = No

wide links = yes
#read raw = yes 
#write raw = yes
#max protocol = smb2
realm = xxx.xx
# client ntlmv2 auth = yes
socket options = SO_BROADCAST SO_KEEPALIVE SO_RCVBUF=8192 SO_SNDBUF=8192
TCP_NODELAY IPTOS_LOWDELAY

#min receivefile size = 16384
#aio read size = 16384
#aio write size = 16384
#aio write behind = true

winbind enum groups = Yes
winbind enum users = Yes
idmap uid = 10000-20000
idmap gid = 10000-20000
auth methods = winbind
winbind use default domain = No
case sensitive = No

#client use spnego = Yes
#client signing = Yes

===============
===============
===============
I have very simple question:

Samba speed is slower than windows native ? 
If not - show me please proper benchmarks, for detecting problems. 

I have many questions from Windows users. They talk about slow transfer
rates to server.
Thanks for answers
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