I have been having a few issues recently, and I can’t quite figure out what is causing this. My setup:
- gigabit WAN up and down. Run speed tests regularly and get 800+ mbps up and down.
- opnsense router VM (proxmox) running on a lenovo m920x. Installed an intel 2x10gbe card.
- Sodola 10gbe switch
- TrueNAS server (bare metal) w/ 10gbe serving the media files over NFS, stored on a ZFS mirror.
- Jellyfin LXC
- debian LXC running the arr stack w/ qbittorrent
- NVidia Shield w/ ethernet
First issue is extremely slow downloads on qbittorrent. Even if I download an ubuntu iso with hundreds of seeders will sit around 1 mibps. Media downloads with ~10 seeders, I’ll sit around 200kibps. Running this through gluetun and protonvpn wireguard with port forwarding enabled and functioning.
Second issue I’m having is if I am downloading anything on qbittorrent, and attempt to play a 4k remux on Jellyfin, it is constantly buffering. If I stop all downloads, immediately the movie plays without issue. 1080 files play without issue all the time.
I tried spinning up a new LXC with qbittorrent, and can download ubuntu isos at 30+ mibps locally and not over NFS.
Any idea what could be causing this? Is this a read/write issue on my TrueNAS server? Networking issuing causing the NFS to be slow? I’ve run iperf to the TrueNAS and getting 9+gbps.
Are all your containers running in bridged mode or host mode?
Also, how many cores are assigned to these containers?
The Jellyfin LXC has 4 core, and the Arr stack w/ qbittorrent LXC also has 4 cores. The containers are running in bridge mode.
You have more than enough cores for each then. Probably too many. As a test, try the qbit or jellyfin one in host mode and see if the network performance changes. I’d start going down the rabbit hole of tuning bridged mode network in LXC, or just keep them on host mode.