What to believe
- Thread starter Tera-sat
- Start date
Depends on the point of view 
This looks like the dashboard of a pfsense box -> FreeBSD based. FreeBSD doesn't report back detailed memory consumption info via the ballooning deivce. Therefore Proxmox VE can only show the full usage of that guest from the outside. In other words, how much the full virtualization is currently using from the hosts perspective.
You can compare the output of
Also searching the forums for this topic will bring up quite a few discussion
This looks like the dashboard of a pfsense box -> FreeBSD based. FreeBSD doesn't report back detailed memory consumption info via the ballooning deivce. Therefore Proxmox VE can only show the full usage of that guest from the outside. In other words, how much the full virtualization is currently using from the hosts perspective.
You can compare the output of
info balloon between different VMs when you enter it in the "Monitor" sub menu of a VM to see what they report back when queried for their memory consumption.Also searching the forums for this topic will bring up quite a few discussion