I had for a while been noticing large spikes in the disk backlog according to netdata as wells as swap useage errors. The swap useage errors especially were wierd because the VM can ballon up to 200GB of RAM and i know i am not using that much. These errors combined were leading to system freezes where i had to go into proxmox and stop the VM and then start it. So to start investigating i ran
qm monitor
info balloon
this revealed to me that the VM was attempting to reduce down to 1MB of RAM. So i increased the minimum to 40GB. This reduced the strain on swap allowing the disk backlog to remain at a more manageable level.