RPI3 swap experiments (grace under pressure)

[Trev]

George Mitchell wrote on 15/08/2018 08:33:
> On 08/14/18 18:17, Jedi Tek'Unum wrote:
>> I firmly disagree with the entire concept of out of memory killers. They are simply evil and in my opinion a complete cop-out. I first encountered this kind of kludge back in the ‘80s with AIX. It was bad then and it still is today. Frankly I find it ridiculous that they still exist.
>> [...]
> 
> However: consider the subject (Raspberry Pi).               -- George

When researching whether 512M of RAM was considered "usable" for a 
FreeBSD buildworld, I came across [https://reviews.freebsd.org/D8302] 
from October 2016 where just 256M was considered a test case for i386 
and amd64 (-j1 I'm assuming) buildworlds which should succeed.

Regardless, my RPi3B+ OOMA issues were completely eliminated by 
replacing the 16G SanDisk "Ultra" card with a "faster" 32G SanDisk 
"Extreme" card which contains all file systems as well as a swap 
partition and runs -j4 buildworld flawlessly. I think this lends some 
support to Warner's view.