[Samba] Vista Read/Write performance

[Jeremy Allison]

On Mon, Mar 31, 2008 at 10:04:10AM -0600, Matt Harris wrote:
> Jeremy Allison wrote:
> >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.
> >  
> The readahead vfs module had a slight impact, but not nearly as much so 
> as moving to a better ethernet card.

Ah, didn't notice the date on the original email (it just showed up this
morning :-). Glad things got fixed. Just for interest, how much did the
readahead help ?

Jeremy.