When I am using
free -m to check memory status, I get the following:
$ free -m total used free shared buff/cache available Mem: 7641 5125 188 739 2327 1476 Swap: 3755 0 3755
This shows 67.07% in used memory and 30.05% in buffered/cache.
However when I look at the System Monitor (I am using Ubuntu 18.04), I see this:
Memory 5.9 GB (78.8%) of 7.5 GB
These two do not match up. Can someone shed some light on this?