Memory usage issue

[pac]

I have a server with 64GB of RAM; inside the server, I have one VM(which I gave 52GB).

the problem I have is when look memory usage on VM I see a lot of free space of memory comparing to what I see on pve

this is the result come from VM

So it is different from here.

This problem caused my virtual machine to shut down.

Can anyone assist me with this problem? I make use of Ceph storage.

Thank you.

 

[Neobin]

Install and enable the Qemu-guest-agent:
https://pve.proxmox.com/wiki/Qemu-guest-agent

 

[pac]

Install and enable the Qemu-guest-agent:
https://pve.proxmox.com/wiki/Qemu-guest-agent

Can this work with the FreeBSD distribution

 

[Neobin]

I have no clue about FreeBSD, but found this: [1].
Is this an appliance, like TrueNAS Core, pfSense, OPNsense, ...?

Another question: Do you use PCIe-passthrough on that VM?

[1] https://github.com/aborche/qemu-guest-agent

 

[mr44er]

Can this work with the FreeBSD distribution

FreeBSD has a port https://www.freshports.org/emulators/qemu-guest-agent/
On OPNsense you'll have it as plugin.

I make use of Ceph storage.

Then you should leave more RAM on the node, ceph is hungry and rises up after some days uptime. Also if it has to rebalance, it needs even more space to breathe. So you really don't want to run out of RAM during repair, because of a dead disk.
Try ~40GB for the vm and then watch how it goes with qemu-guest-agent.

If you need more finetuning on FreeBSD, you can always limit the arc with vfs.zfs.arc_max
https://www.cyberciti.biz/faq/freebsd-set-up-zfs-arc-size-freebsd-unix/