Quick question about RAM on VM vs on the host

[killmasta93]

Hi
I was wondering if someone could shed some light, Currently i have a ubuntu 22.04 which i installed the drivers but for some reason does not show the correct ram on proxmox vs on the vm itself? not sure if i missed something? on Windows works perfectly

 

[Onslow]

Hi. "Not correct", what isn't correct, precisely?
Which PVE version?

 

[killmasta93]

hi @Onslow thanks for the reply, currently proxmox 8.4,

 

[Onslow]

What does free -h in the VM show?

 

[killmasta93]

 

[Onslow]

Note: "used" + "buff/cache" is more or less "Memory usage".

You can try the following experiment.

In the VM:
1) Execute free -h and note "Memory usage" from the GUI.
2) Empty pagecache, dentries and inodes: echo 3 > /proc/sys/vm/drop_caches
3) Repeat point 1)

"buff/cache" in 3) is probably much less than in 1).
And "Memory usage" in 3) is probably much less than in 1).
Or no?