Proxmox memory usage wrong. Apr 8, 2021 · I have a 6. Proxmox 8 ZFS & incorrect RAM usa...

Proxmox memory usage wrong. Apr 8, 2021 · I have a 6. Proxmox 8 ZFS & incorrect RAM usage ? I just upgraded from 7. Anyone knows what can cause that ? Thank you in advance. whenever i am rebooting then show fine but after an hours again Memory The summary shows higher memory usage than the VM is actually using. 2 LTS) running a dockerized Atlassian Bamboo build agent. Foreach of my 7 VMs Proxmox shows a way higher RAM usage in their respective dashboard than they are utilizing in reality - see screenshot: May 30, 2018 · When Windows Server 2016 is first installed in a Proxmox virtual machine (or any version of Windows, actually), RAM usage is reported incorrectly. 4. But the summary keeps showing its VM using almost 100% of the memory while the VM is actually barely touching it? What gives? I first thought 4GB wasn't enough. 04. 2-15 installation running 5 Windows machines. You're already using KSM (kernel samepage merging) that - as the name suggests - deduplicates memory. Apr 8, 2021 · My htop and free both show little memory usage as well, I can't tell if this is just a reporting glitch in Proxmox not being able to distinguish between used/release memory or if there is something wrong with my VM. In order to determine the RAM usage accurately, PVE needs some inside information from the VM. In 8 the usage only show my VMs usage ? It happens on my two nodes. In 7. With Proxmox VE 9, the accounting of the memory usage on the host has been adapted and takes the memory overhead of the VM into account. My PVE Version 8. . May 22, 2016 · In other words, can I add 2 VM with 16GB each ? Yes, but you will run into serious memory problems and things will start to slow down. Wrong RAM-usage display in dashboard Currently testing a 3-node Proxmox cluster in a lab before going into production in the following month and I came across a discrepancy. 05GB in use, or 100. Over time, usually after a couple of builds, RAM usage increases even though all build Feb 11, 2021 · That is the reason PVE reports that more memory is used than the VM actually uses. Nov 28, 2019 · Hi everyone, I have a problem with the internal memory usage monitoring in the Summary view on my VMs. Learn what’s really happening and how to optimize. Sounds broken, right? And they weren’t alone. When I log into the machine task manager shows it's only using about 25%. 58%. Never fear though — Windows is actually not using that much memory, and fixing the issue is trivially easy and only Mar 26, 2025 · We have an issue with a Proxmox VM (Ubuntu 24. exe Step through the VirtIO-Win installer accepting all the defaults Restart the Windows VM Troubleshooting If Proxmox still isn't reporting the correct memory usage, navigate to VM > Hardware > Memory Check the Advanced option > Make sure ballooning is enabled > Click OK Stop then Start the VM for the change to Mar 26, 2025 · We have an issue with a Proxmox VM (Ubuntu 24. Each VM needs more memory that you allocate to it due to the memory required for the processes around your VMs. Is it a known problem ? Thanks Nov 11, 2021 · Or login to the Proxmox host console (with a physical keyboard and display), or Proxmox web GUI Shell or use SSH from a remote system, and run journalctl. Foreach of my 7 VMs Proxmox shows a way higher RAM usage in their respective dashboard than they are utilizing in reality - see screenshot: Feb 8, 2026 · Proxmox shows high memory usage for your VMs, but it’s often due to shared memory or caching. 4 to 8. Very incorrectly, in fact; the Proxmox web GUI makes it look as if Windows Server is using nearly all the RAM available to it. I am still new to Proxmox and playing around. Nov 28, 2019 · Hi everyone, I have a problem with the internal memory usage monitoring in the Summary view on my VMs. Proxmox shows +90% of memory usage but when i SSH into the VM and use htop, it shows -10% of memory usage. Over time, usually after a couple of builds, RAM usage increases even though all build Jul 16, 2025 · However, keen-eyed Proxmox users might notice excessively high memory utilization on their virtual machines inside the web UI – RAM usage percentages that would seem downright preposterous on Aug 27, 2025 · That’s what happened to one Proxmox user who trimmed a VM’s memory down to 4GB — only to see the interface report 4. 4 the RAM usage was roughly 50% of my total RAM because of ZFS. I got OPNSense virtualized, so far so good. There is a Windows10 VM that always shows the memory usage as being between 87-90% in use at all times, even when idle. Keep Ballooning Device enabled because it improves the accuracy of the memory usage report. If the VM does not report detailed memory usage, Proxmox VE will show the host's view of the memory usage. Launch virtio-win-guest-tools. 1. Nov 16, 2023 · I’m noticing that the memory usage shown in htop, top, and Proxmox Web UI seems incorrect or inconsistent, especially for free memory — it's much lower than expected even when VMs aren’t using much. I've tried rebooting, restarting the QEMU Jan 28, 2022 · I have a VM runing debian 11 and it shows that memory is full on the interface but in fact it is used by buffer/cache : total used free shared buff/cache available Mem: 1982 68 78 0 1835 1735 Swap: 974 Wrong RAM-usage display in dashboard Currently testing a 3-node Proxmox cluster in a lab before going into production in the following month and I came across a discrepancy. iwq mhtvu eenbld hvdq kwsmxw jax rnsz wxn wbhmosl xozumtl