samba - Jan 2003 - Does 3MB/sec seem as fast as Samba is?

Hi All,

I've been experimenting with Samba 2.2.7a Debian 3.0
on a dual PIII 1000 SMP box, 1GB ram, and a fast RAID
5 array (150MB/sec write local). It seems that no
matter what options I set in smb.conf nor what
underlying filesystem I use (JFS, EXT3, XFS) I can
only get 3MB/sec MAX on writes out of samba from any
Windows client in my environment. Given that wire
speed for fast ethernet ought to be 11MB/sec (we see
this from UDP NFS on  write all the time-same box)
what's the problem? Does TCP/IP really eat more than
half of the performance? During all of this, SMB is
only using 5-7% CPU per write process max.

Suggestion sincerely appreciated!

Thanks,

Steve

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Hi,
I think that in Windows there is code that 
detect that the server is not an original
Windows NT or 2000 server box. After this
detection Windows give's extra waits in the
I/O to frustrate the user and encourage him
to buy original Windows Server software.
I don't trust these guys in Redmond. 
Kees