memory

Hi! Some servers in my cluster are experiencing unrelated RAM consumption. For example there is a host running two kvm with 120GB dedicated memory + zfs arc 16GB. But at the same time the memory consumed by the host is 468GB. 468 - 120 -120 - 16 = 212 What can another 212GB be used for...

Hi Devs, Using memory hotplug according to the proxmox wiki I succesfully increased and decreased the memory size of a Debian/Ubuntu guest. However when booting a virtual machine with memory hot-plug enabled and more than 21GB memory the guest OS can kernel panic with the following error...

We have a couple of pretty beefy VM hosts running the latest VE and have on one host a fairly beefy VM because it is running a Mastodon server with 200 active accounts on it. However, the displayed memory usage in the Proxmox VE dashboard for this VM always shows 97% and higher memory...

Hi all. I need help with a memory leak that I'm experiencing. Essentially what I'm seeing is the memory usage gradually increasing over several days until it utilizes nearly 100% of RAM, fills up the swap, and then oom-killer begins killing processes. Eventually the system becomes unresponsive...

Hi, everyone. I am using windows server 2025(like windows 11) as as VM in PVE. I installed virtio-win-gt-x64 and wirtio-win-guest-tools. But the balloon still dont work. I have 512G memory in host and set "16G min, 128G max and balloon on" to VM. The VM always use 128G after start. I type "info...

I need some help here. This is my first encounter with Proxmox. I made the switch after ESXi's free version went away. Here's my hardware: Dell Poweredge R710 128GB of RAM, 24 x Intel(R) Xeon(R) CPU X5670 @ 2.93GHz (2 Sockets), 6x 6TB 12Gb/s SAS drives connected to an HBA configured as a...

Hi, Recently I set up a monitoring stack in my virtualized K8s cluster (Prometheus, Grafana) and set up node exporters on many VMs/nodes, including my PVE and PBS nodes. Not soon after I started getting alerts regarding major page faults (hundreds over half a minute, sometimes every half hour...

I have installed Windows 11 on my Proxmox server (PVE version 8.1.4) and using q35 machine (version 8.1). I have DDR5 RAM installed on my physical machine. And the RAM sticks do show up as DDR5 on Proxmox host. I am also passing through Nvidia GPU to Windows VM which passes through perfectly...

The TL;DR I'd apperciate any comments on the below notes for capturing forensic data. I've highlighted a few specific questions, but any other notes, comments, corrections, or insight would be welcome. Background I work in the digital forensics field and, given Proxmox's recent jump in...

I have created a VM through the GUI and using "qm create" and "qm set". I want to assign it 64 GB of memory. Here is the conf file: agent: 1 bios: seabios boot: order=scsi0;ide2;net0 cores: 4 cpu: host hotplug: disk,cpu,memory,network ide2: truenas:iso/golden2.iso,media=cdrom,size=1011M memory...

In my attempts to write a shell script to create VMs quickly I've got oneliners working fine i.e. # qm create 9999 --name vmtest --bios ovmf --efidisk0 data:0,efitype=4m,pre-enrolled-keys=1 --boot "order=net0;scsi0" --cores 1 --sockets 1 --cpu host --memory 2048 --net0 model=virtio,bridge=vmbr0...

Hi everyone, I have a server with 2 x 1TB storage - raid 1, 64GB of ram, AMD 5600G CPU. I created 1 VM where i use cPanel with 16 GB ram, and i can see that the PVE host jumped up to 80% (almost 50GB) RAM usage. What can cause this? I went through the forum posts and i see this can be just...

I've had an unexpected shut down on a VM that hosts a web server 2 times. Both at 6am, so obviously the first thing I need to do is find whats running at 6am on those days. The shut down appears to be more of a Kill than a shut down. From syslog it appear to be saying it's out of memory and...

I've read the NUMA wiki here: https://pve.proxmox.com/wiki/NUMA and the admin guide regarding NUMA here: https://pve.proxmox.com/pve-docs/pve-admin-guide.html#qm_virtual_machines_settings however I still have some questions. * Is NUMA only useful if your PVE *host* has more than 1 physical...

How much in theory PVE 8 requires RAM for its own usage? It runs on 1 TB SSD with ZFS. If I remember it correctly, the rule of thumb says: 1TB of storage equals to 1GB of RAM usage for ZFS based system... I have on server with 32 GB of RAM and mentioned above drive installed Proxmox 8 with 3x...

Hi guys, In the company where I'm working, we have a Cluster composed of 8 nodes that are connected through a 1Gb ethernet network directly to a Switch. On the nodes we mostly run Kubernetes, DNS Servers and some other services. The problem is that on each node, the process corosync is using...

Hi all, one of the problems I am trying to get to the bottom to is, Proxmox thinks my OPNsense VM is using 6 gigs of RAM when it's only using 400mb or something? I first simply assumed this would be something to do with ballooning feature, and working as intended if that were desired - but it's...

Hello! Is there any way to make memory bars colored by type of data that's stored in it? I mean, currently it shows you almost 100% of RAM if you use half of RAM by VM's and other half is ZFS cache. My point is to separate bar into multiple colors to make it clear what is cached and what's not...

Hi all, Have the backup server working, but one thing which seems odd, the amount of memory it's using while there is no running tasks. the server has 32gb in total and it's using 16.82gb. It seems high to me with no jobs running. Rebooted and memory was around 1-2Gb (would need to reboot...

Hi All, Coming from 20 years as a professional in Windows (2 years of hands-on Linux) I'm having issues with fully grasping cgroups. I recently upgraded my server cluster and am I encountering OOM kills regularly (a few times per day). I have a single cgroup (just out-of-the-box config). My...