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+--- Thread: QSV cpu utilization (/t-qsv-cpu-utilization)
QSV cpu utilization - sisu - 2024-03-18
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/administration/hardware-acceleration/intel/#lp-mode-system-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,
RE: QSV cpu utilization - TheDreadPirate - 2024-03-18
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.
RE: QSV cpu utilization - sisu - 2024-03-18
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.
RE: QSV cpu utilization - TheDreadPirate - 2024-03-18
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.