GTX1060 4k Transcoding - Linux Mint

[bigverm23 2]

Linux Mint 19

Intel i5-3570k VAAPI

GeForce GTX 1060 unlocked for multiple streams

 

Seems when I transcode 4k specifically 2 streams, my CPU runs about 100% while the GPU is stressed minimally.  

 

How should I investigate this?

Batman4kTranscode1.txt

Avengers4kTranscode2.txt

server.txt

ffmpeg.txt

Edited January 28, 2019 by bigverm23

[Luke 42079]

Both are using the gpu, but the fact that it's burning in subtitles could be related. burning in subtitles is a very expensive operation. you could try turning off the subtitles.

[bigverm23 2]

Also of note here is that although my CPU was running at 1 hundred percent while transcoding those two 4k videos, my GPU was only running at about 5 to 10 % utilization

[bigverm23 2]

Also of note here is that although my CPU was running at 100% while transcoding those two 4k videos, my GPU was only running at about 5 to 10 % utilization while hw transcoding

[Luke 42079]

Also of note here is that although my CPU was running at 1 hundred percent while transcoding those two 4k videos, my GPU was only running at about 5 to 10 % utilization

Understood, but it's possible the burning in of subtitles is playing a role in that. Thanks.

[bigverm23 2]

Am I turning subtitles off at the movie level? Or at the server settings level?

[Luke 42079]

Just for that one playback session prior to playback. You can do that directly on the detail screen.