RAM/Memory resources on 7 STABLE

[Wojciech Puchar]

> When I boot this machine it usually shows (in top) about 11 G Free in the 
> Mem: line
>
> The machine, in this snippet, has been up for 5 days 22 hours and change and 
> it now shows 1436M free in the Mem: line
> I've been watching the number and it has been slowly decreasing over the 5 
> days since its last boot.  It looks like as the Free line trends down, the 
> Inact value trends up to keep the total Mem used at the installed 12G

ALL unused memory is used as disk cache in FreeBSD.