[Samba] Vista Read/Write performance

[Jeremy Allison]

On Tue, Mar 18, 2008 at 03:57:16PM -0700, Matt Harris wrote:
> Hello.
>
> I am setting up a smb server running debian etch for a small office.  Due 
> to circumstances outside my control, most of the client machines are 
> running Windows Vista Ultimate.  The shares are all set up properly, 
> security is set, and we're good to go.
>
> Except that the throughput from any of the Vista machines to the server is 
> at best slow and at worst abysmal.  After tweaking the socket options, 
> turning off various services in windows (Remote Differential Compression), 
> and even installing the freshly-released SP1, the best I've been able to 
> get is 12.5 MB/s reading from the samba server.  SCP gets 35-40 MB/s, and 
> Vista to Vista transfers using SMB get 35-40 MB/s.
>
> I'm in the unfortunate position of having to recommend to my boss that we 
> put the data on another Vista machine and use that as a makeshift file 
> server until this problem can be ironed out.  I very much do not want to 
> tell him that.  Any help anyone can offer would be greatly appreciated.

Try loading the "readahead" vfs module on the shares Vista is accessing.
I'm assuming the Samba code is on Linux ?

Jeremy.