RAM Usage proxmox
- Thread starter isave47
- Start date
VMs will use what they are allocated. You can enable ballooning to shrink VM RAM if the node is full…over 80% by default.
Your Ram is below the recommended size, which is 2 GiB "for the OS": https://pve.proxmox.com/pve-docs/pve-admin-guide.html#install_recommended_requirements
I would try to upgrade to as much Ram as the Computer accepts, to get some free headroom. (I say that because I just replaced some of my Homelab(!) nodes to get 128 GiB per node by dropping nodes with "only" 64 GiB. RAM is always the limiting factor!)
I would try to upgrade to as much Ram as the Computer accepts, to get some free headroom. (I say that because I just replaced some of my Homelab(!) nodes to get 128 GiB per node by dropping nodes with "only" 64 GiB. RAM is always the limiting factor!)
Even with more RAM it's also quite normal for Linux systems to use not used ram for caches.
The Linux kernel ( and ProxmoxVE is basically a Debian Linux with an Ubuntu Kernel) uses the caches as cache to speed up things. Additionally ZFS ( if you use it on the Proxmix VE host) uses RAM for it's own cache.
This is a good thing, I would be more worried if the RAM wouldn't be used thus wasted. See https://linuxatemyram.com for more information.
To monitor the ram usage inside the vms you need a dedicated monitoring Tool like Zabbix, Icinga2, prometheus, checkmk or whatever you prefer.
There was a larger discussion on monitoring RAM in a PVE environment in this thread: https://forum.proxmox.com/threads/p...this-one-thing-the-memory-usage-graph.149473/
The Linux kernel ( and ProxmoxVE is basically a Debian Linux with an Ubuntu Kernel) uses the caches as cache to speed up things. Additionally ZFS ( if you use it on the Proxmix VE host) uses RAM for it's own cache.
This is a good thing, I would be more worried if the RAM wouldn't be used thus wasted. See https://linuxatemyram.com for more information.
To monitor the ram usage inside the vms you need a dedicated monitoring Tool like Zabbix, Icinga2, prometheus, checkmk or whatever you prefer.
There was a larger discussion on monitoring RAM in a PVE environment in this thread: https://forum.proxmox.com/threads/p...this-one-thing-the-memory-usage-graph.149473/
Since this kind of questions come often a lot I did a kind of FAQ on it for future reference https://forum.proxmox.com/threads/f...ram-usage-of-the-vms-in-the-dashboard.165943/
Any feedback/corrections/suggestions for additional points to add welcome
Any feedback/corrections/suggestions for additional points to add welcome