2007/8/7, Matthias Scheler <tron@zhadum.org.uk>:
> On Tue, Aug 07, 2007 at 12:18:11PM +0200, Zafer Aydogan wrote:
> > Does anybody know what could be the reason ?
>
> Yes, it's a problem with the default configuration of Mac OS X's TCP.
> Please create a file "/etc/sysctl.conf" with the following content
> on all the Mac OS X clients:
>
> net.inet.tcp.delayed_ack=0
>
> Run "sysctl -w net.inet.tcp.delayed_ack=0" manually afterwards to
> change the setting without rebooting.
>
>         Kind regards
>
> --
> Matthias Scheler                                  http://zhadum.org.uk/
>
I already tried that without success. But I don't have such problems
with our current samba server (linux), so I think it's a NetBSD
related problem, not MacOS.

Any Ideas how I could find the bottleneck ?

Zafer.