Web-ui reports very low memory usage on a ubuntu VM

chiangww

New Member
Jul 21, 2023
3
0
1
VM memory setting: 8GB, balloning is on
Guest OS: Ubuntu 24.04.1 LTS (GNU/Linux 6.8.0-51-generic x86_64)
qemu-guest agent installed (1:8.2.2+ds-0ubuntu1.4)

In VM, 'free -h' reports as
1735433223735.png

But web-ui gives
1735432988951.png

How is that possible a ubuntu VM uses only 85.5MB?
 
Edit: please ignore this reply completely. Obviously I read "Container" where it clearly states "VM". Now I need to think over it again...

Edit2: maybe the VM is in sleep or hibernation mode, from the inside --> not really turned off but also not up-and-running, just waiting for a wake-up call.



How is that possible a ubuntu VM uses only 85.5MB?
It is 85 MILLION Bytes. How could that be considered "not much"? ;-)

Containers use directly parts of the host's operating system - especially the whole kernel.

This means an empty/basic Container does really not contain much data or many processes. This is one of the reasons Containers are preferred over VMs, which are much larger by design.


Sidenote: I do prefer VMs nevertheless.
 
Last edited:
Edit2: maybe the VM is in sleep or hibernation mode, from the inside --> not really turned off but also not up-and-running, just waiting for a wake-up call.

No, the VM is active and providing some services. As the memory usage shown in the first post, 5GB used.
 

About

The Proxmox community has been around for many years and offers help and support for Proxmox VE, Proxmox Backup Server, and Proxmox Mail Gateway.
We think our community is one of the best thanks to people like you!

Get your subscription!

The Proxmox team works very hard to make sure you are running the best software and getting stable updates and security enhancements, as well as quick enterprise support. Tens of thousands of happy customers have a Proxmox subscription. Get yours easily in our online shop.

Buy now!