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+--- Thread: 100% CPU Usage (/t-100-cpu-usage)
100% CPU Usage - Fern_Moonlight - 2025-07-02
I bought a used notebook so I could run Jellyfin and leave my personal computer free. But I have a problem. It has weaker hardware than my computer, so I need help configuring Jellyfin correctly. I've tried enabling transcoding, but the CPU usage stays at 100% all the time, and if I disable it I can't watch some titles. At one point I made a setting in transcoding and the image was simply terrible.
I'm using Jellyfin 10.10.7.
The notebook settings are:
Model: ASUS Vivobook Go 15 (E1504F)
CPU: Ryzen 5 7520U
GPU: AMD Radeon Graphics
RAM: 8 GB
OS: Windows 11
RE: 100% CPU Usage - Efficient_Good_5784 - 2025-07-02
Is the 100% usage while playing back media? Or is it happening even if nobody is watching stuff?
Also, the quality of video that AMD GPU products can produce has always been the worst when compared to the competitors (Intel, Nvidia).
If the quality of the transcoded video is important, I would suggest you rely on the CPU cores to transcode the video (but that would be slow).
When in the transcoding section inside the dashboard, you have to check the decode and encode options your GPU supports.
Not all GPUs support everything. The ones that you leave unchecked will be handled by the CPU instead.
For your GPU, looks like it's a Radeon 610M which I believe used VCN 3.0.
For decode, uncheck AV1.
For encode, uncheck both HEVC and AV1.
RE: 100% CPU Usage - Fern_Moonlight - 2025-07-02
The 100% usage starts during media playback, but remains even when I close the app on my phone or TV, for example.
Should the settings stay like this?
https://pasteboard.co/lga8kD2RcJSG.png
https://pasteboard.co/rz1ji1ea3y7X.png
RE: 100% CPU Usage - Fern_Moonlight - 2025-07-02
P.S. To stop the 100% usage, I have to manually end the FFmpeg task
RE: 100% CPU Usage - Efficient_Good_5784 - 2025-07-02
It would be helpful to see a log of what the server is doing.
Could you share one using a site like pastebin.com?
RE: 100% CPU Usage - Fern_Moonlight - 2025-07-03
Of course, this is from just now when I put Weathering With You on to watch.
https://pastebin.com/enhvPUAe
RE: 100% CPU Usage - Efficient_Good_5784 - 2025-07-03
I would also look at the server logs (not ffmpeg logs) to see what is happening after the transcode is done.
The ffmpeg logs you shared shows everything is working as expected and normal.
RE: 100% CPU Usage - Fern_Moonlight - 2025-07-04
The server logs are those with the name like this one, “log_20250704.log”?
RE: 100% CPU Usage - Efficient_Good_5784 - 2025-07-04
(4 hours ago)Fern_Moonlight Wrote: The server logs are those with the name like this one, “log_20250704.log”?Yes. If you click on one of those, it will open in a browser.
Just keep refreshing and scrolling to the very bottom to see what is currently happening.