Reducing the size of the ports tree (brainstorm v2)

[Warren Block]

On Tue, 4 Nov 2014, Chris H wrote:

> gpart(8) -a gives you what you need. If it's truly as bad as all that,
> mounting the ports tree on a 512k aligned slice will reduce the "slack"
> you appear to be referring to. zfs(8) also has this ability.

Not alignment, but filesystem block size.  But that can only be set for 
an entire filesystem, and it's a tradeoff.