[plug] Samba performance quirk

[Steve Baker]

Hi,

I have 20 computers isolated in their own network, all with identical 
hardware and running Ubuntu 7.04 x64.  Systems are named ubu01 .. ubu20, 
and has a /usr/shared partition shared using Samba with a share name of 
'shared'.

Each system also has VMWare server installed, and Windows XP running in 
a VM.  These VMs are named vwin01 .. vwin20.  From each windows VM, I 
can access the Samba shared filesystems on any of the ubuntu hosts.

IP address are statically assigned - 192.168.8.11-30 for the ubuntu 
hosts, 192.168.8.51-70 for the VMs.  The VMs share the host adapter in 
bridged mode.

The problem is this: from windows vm vwinX, read/write to the samba 
share on ubuntu host ubuX (ie. the same physical system) is very very 
slow, as in almost non-existent.  I can see the directory and the files, 
but trying to read or write files times out or otherwise fails.  
Accessing the share on any of the other systems is very fast, ie. 
behaves normally.  Accessing the samba share on host X from any OTHER 
windows VM also works fine.  The behaviour is the same on all 20 
computers - accessing any other system is fine, accessing the local 
ubuntu host breaks.

Any suggestions?

Regards,
Steve