[webmin-l] Confusing memory usage shown

[Chris <chr...@gm...>]

This is webmin 1.890 on a Ubuntu 18.04 system. I just upgraded from 4GB
to 16GB of ram yesterday. Top shows for memory installed and usage:

KiB Mem :15354192 total,   567168 free,  3916928 used, 10870096
buff/cache
KiB Swap:  4089852 total,  4089852 free,       0 used. 11417092 avail
Mem

While webmin shows

Real memory 	7.11 GB used, 14.64 GB total

I'm just curious as to why there's such a difference in what Top shows
and what is shown on the webmin system information page.

-- 
Chris
31.11972; -97.90167 (Elev. 1092 ft)
07:31:32 up 15:46, 1 user, load average: 1.08, 0.68, 0.56
Description:	Ubuntu 18.04.1 LTS, kernel 4.15.0-33-generic