Hi
I have upgraded a Proxmox 8.4.14 to Proxmox 9.0.10. I don't get any errors on Upgrade.
But after the upgrade I have very slow write Performance on NFS backed storage. The storage are connected via NFS 3 (qcow2 Storage for VMs).
Inside the VM I had 230MB/s (Rand 4k o8 t1 write) on Proxmox 8 but only 8-10MB/s on Proxmox 9, the write throughput on the host itself on on this storage are the same as before the upgrade, the slow write Speed is only inside the VM (several different VMs, Win 2019/Win2025/Debian).
Now I have started Proxmox 9 not with the default Kernel 6.14.11-4-pve instead with the Kernel 6.8.12-15-pve and everything goes back to normal Speed. Is there a known issue with the new Kernel and NFS backed Storage?
Thanks in advance
Thomas
I have upgraded a Proxmox 8.4.14 to Proxmox 9.0.10. I don't get any errors on Upgrade.
But after the upgrade I have very slow write Performance on NFS backed storage. The storage are connected via NFS 3 (qcow2 Storage for VMs).
Inside the VM I had 230MB/s (Rand 4k o8 t1 write) on Proxmox 8 but only 8-10MB/s on Proxmox 9, the write throughput on the host itself on on this storage are the same as before the upgrade, the slow write Speed is only inside the VM (several different VMs, Win 2019/Win2025/Debian).
Now I have started Proxmox 9 not with the default Kernel 6.14.11-4-pve instead with the Kernel 6.8.12-15-pve and everything goes back to normal Speed. Is there a known issue with the new Kernel and NFS backed Storage?
Thanks in advance
Thomas
