Proxmox v5.0.32 Memory usage inside LXC

[Djam36]

Hi all,

Any of my LXC containers in proxmox5.0.32 shows different memory usage from inside of container and in web interface:

Show attachment proxmox_web

Inside of container free -m -h shows:

Show attachment freeM

I have monitoring this parameter to node.js and i get

Show attachment NodeJS

How can I get a correct info?