ram usage

I have several nodes running Ubuntu 18 or 20 as guest OS. They have 32 GB allocated memory, but show on the web monitor summary as using less than one of percent of allocated RAM. The Memory usage shows pale green 32 Gi, but reports RAM usage (dark green ) about 140 MiB. On the guest OS I...

I have A LOT of VMs running on Proxmox VE across several Servers. Most of the VMs run Debian GNU/Linux Bookworm. Overall the KVMs seems quite inefficient, especially in Terms of: - RAM Usage (a bit less on Xeon E3 v5/v6, since up to 64GB RAM can be used there) - Disk Space (each VM takes 16GB...

I have 64 GB ram in my server. As ZFS is configured to utilize maximum RAM, I tried to reduce with following config in /etc/modprobe.d/zfs.conf to around 8 GB options zfs zfs_arc_min=8388608 options zfs zfs_arc_max=8388608 but still zfs was using 28 GB.

I check CPU Summary from the Node then there always showing Ram usage High, But when I check it from individual VM summary then it's normal. So, Which is the correct report ? and how to solve the node summary ram high usage problem? Proxmox Node Summary Ram Usage showing= 94%+ Every Individual...