eGPU for jellyfin transcoding in Linux container

[milk_dud_nipples]

What model NUC do you have?  If it is relatively recent, the iGPU should be pretty capable as is.

It's a NUC11PAHi7. Here's a link: https://a.co/d/8t0RSzj

Trying it out right now. Here's what I did.

Passing the device into the container.

Code:

demo@pve:~$ ls -l /dev/dri
total 0
drwxr-xr-x 2 root root        80 Oct 20 09:37 by-path
crw-rw---- 1 root video  226,  0 Oct 20 09:37 card0
crw-rw---- 1 root render 226, 128 Oct 20 09:37 renderD128
demo@pve:~$ getent group video
video:x:44:
demo@pve:~$ getent group render
render:x:104:

I added the following to my LXC conf and restarted it.

Code:

dev0: /dev/dri/card0,gid=44,uid=0
dev1: /dev/dri/renderD128,gid=105,uid=0

I see the device inside the LXC now.

Code:

demo@jellyfin:~$ ls /dev
console  dri  full      initctl  mqueue  ptmx  random  stderr  stdout  tty1  urandom
core    fd  hugepages  log      null    pts  shm    stdin  tty    tty2  zero
demo@jellyfin:~$ ls /dev/dri
card0  renderD128

Added this to the compose file for Jellyfin.

Code:

services:
  jellyfin:
    image: jellyfin/jellyfin:latest
    container_name: jellyfin
    network_mode: "host"
    devices:
      - '/dev/dri:/dev/dri'

Verified the container can see the device.

Code:

demo@jellyfin:~/jellyfin$ sudo docker exec -it jellyfin /bin/bash
root@jellyfin:/# ls /dev
core  dri  fd  full  mqueue  null  ptmx  pts  random  shm  stderr  stdin  stdout  tty  urandom  zero
root@jellyfin:/#

Now, I went into the Jellyfin settings in the UI and enabled QSV under Playback > Transcoding (default settings). I can see it using the iGPU.



It still seems like the LXC is using an inordinate amount of CPU, though. It's sitting at roughly 70% with 4 vCPUs allocated to the container.



Did I do something wrong or is this normal behavior?