[Samba] aio settings for samba 4.3

[Volker Lendecke]

On Fri, Jul 22, 2016 at 08:30:42AM -0500, Russell R Poyner wrote:
> 
> Thanks for all the zfs tuning tips. The point is a good one.
> 
> I was concerned that zfs performance might be limiting, and posted tests run
> against a ufs formatted ram disk for that reason. The tests with the ram
> disk are slightly faster than the zfs backed tests, but still slower than
> tests run with samba on linux using xfs on a single hard disk.

Just a random thought: Purely for testing purposes, not for production
use: Try "strict locking = no". If this improves things, then the
upcoming robust shared mutexes will help you.

Volker