RAM Usage measure from GUI and from VM

[fedex03]

Hello everyone,

I can't understand why the Proxmox GUI is reporting me RAM consumption that is not the same as detected in the VM.

For example, I have an Ubuntu Linux VM with 6 GB of RAM.



Proxmox reports me a 91% utulization (5.46 GB/6 GB), while the free command reports:


In fact, the Free command shows only 283 Mb free at the source of a utilization of 3.4 GB.
Where did the remaining GB of RAM go?

Thank you all for your help.

 

[cheiss]

Hi,

first of, there are lots of threads about this topic

The tl;dr is that the host of course sees (and reports) the total memory usage, including buffers/caches used by the kernel - most prominently the disk/page cache is most cases. Unused RAM is wasted RAM - so the kernel happily uses free RAM for caching, which is included in the

So that's where most of the discrepancy will come from.

 

[fedex03]

Hi,

first of, there are lots of threads about this topic

The tl;dr is that the host of course sees (and reports) the total memory usage, including buffers/caches used by the kernel - most prominently the disk/page cache is most cases. Unused RAM is wasted RAM - so the kernel happily uses free RAM for caching, which is included in the

So that's where most of the discrepancy will come from.

Hi @cheiss,

thank you for the reply.. I'm sorry I was lazy..

I'll increase the RAM!

Thanks!

 

[JensF]

Don't look at the "free" column, look at the "available" column.
There is more than 2,5Gb RAM available for applications and services.
I think you don't have to increase the RAM but it's never wrong.