QSV cpu utilization

[sisu]

My setup is: i5 9600k + 32gb of RAM

I setup my jellyfin in a docker container on Ubuntu and configured for the low power encoding according to this: https://jellyfin.org/docs/general/admini...em-support

When streaming a 4k that needs transcode, I used top and noticed CPU utilization is ~50%. Is that normal?

I checked the logs and it seems like jellyfin is using QSV correctly:

Stream mapping:
  Stream #0:0 -> #0:0 (hevc (native) -> h264 (h264_qsv))
  Stream #0:1 -> #0:1 (truehd (native) -> aac (libfdk_aac))

I came from using a Quadro P400 to transcode so I haven't been paying attention to the CPU utilization. I just want to confirm what should I be seeing.

Thanks,

[TheDreadPirate]

Depends. Audio transcodes exclusively on the CPU. Is that 50% of all cores (3.0 load)? Or 50% of one core (0.5 load)? If the former, that is very high for audio transcoding. If the latter, that is normal for an audio transcode.

[sisu]

I don't really know how to read top and htop, but seems like the the later. The htop shows utilization across all CPUs jumping from 5% - 50% totaling to about ~50%-%60.

[TheDreadPirate]

That is 50% of one core then. Which is normal for audio transcoding. Keep in mind that the audio transcode has to keep up with however fast QSV is transcoding the video.