Memory leaks on my host running pve 8.4.1

[gdmax]

Hi all
have you seen this issue?
I am running A Lenovo SR530 server: pve 8.4.1
20 x Intel(R) Xeon(R) Silver 4210 CPU @ 2.20GHz (1 Socket)
RAM: 192 GB

I am not using memory balooning for my Vms

i have 10 Vms with 8Gb each = total 80Gb
1 Vm with 4Gb
TOTAL allocated memory: 84Gb

my Host show usage of almost double that !



is there any Memory leak?

my server firmware update to the latest firmware drivers



regards,

 

[MarkusKo]

if you use zfs then its the arc cache, the hypervisor and other services use some ram too

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

check with

arc_summary -s arc

 

[gdmax]

Here is the output

 

[MarkusKo]

well, it shows that 81.5GB of RAM is used for zfs arc cache

if you don't need the RAM for anything else thats good,
if you need the RAM for your VM's you should limit the arc cache according to the docs