Resources panel displays incorrect used ram results.

[oscardssmith]

Expected behaviour

free -m says that I have 3.5 gigs used, while System Monitor says only 2.3 gigs. Free is right, as adding up the memory the Processes tab has for firefox, I get 2.6 gigs.

Actual behaviour

Steps to reproduce the behaviour

I have a few tabs of firefox open, and nothing else that uses much ram.

MATE general version

Mate 1.18.0

Package version

Linux Distribution

Ubuntu mate 17.10

Link to downstream report of your Distribution

[manuee]

Seeing this bug as well, although free -m shows less memory used in my case. Using System Monitor 1.20.0

$ free -mh
              total        used        free      shared  buff/cache   available
Mem:            17G        1.9G        178M        200M         15G         15G
Swap:          2.0G          0B        2.0G

[sc0w]

it is fixed with #155 ? (this PR wasn't accepted)

https://patch-diff.githubusercontent.com/raw/mate-desktop/mate-system-monitor/pull/155.patch