RAM FULL in Node but in CT only 50%

[simrsta]

halo
I use proxmox for database server with ZFS

RAM usage on CT serverdb is only 50GB, but why is it fully used on the node?
what should i do

 

[Impact]

Check the following

arc_summary -s arc
top -co%MEM

Also read this: https://pve.proxmox.com/pve-docs/pve-admin-guide.html#sysadmin_zfs_limit_memory_usage