[Samba] Samba 4 is half as fast as Samba 3?!

[Jeremy Allison]

On Thu, Apr 17, 2014 at 09:24:43PM +0200, Oliver Lehmann wrote:
> Hi,
> 
> [global]
>         max protocol = NT1
> 
> in seems to bring back more or less the performance I was used to
> with Samba 3. NT1 was the default in Samba 3, while SMB3 seems to
> be the default in Samba 4. I also tried
> 
> [global]
>         aio read size = 1
>         aio write size = 1
>         use sendfile = true
> 
> But those made no big difference.

Strange. Normally SMB3 is faster (tested in many
places), but if you get your performance back
then I wouldn't complain :-).