Plex not using all cores during transcoding

Plex Media Server Desktops & Laptops
1

Server Version#: 3.69.1
Player Version#: 1.14.0.5470

My Plex is not using all the cores available when transcoding. It has 16 cores and 32 threads at its disposal, but it is about using 1/3 of each core. Some more than others, albeit none of them at 100%.
Looking at other posts there was some issues with VC-1, however, stream codec says HEVC (pastebin here: https://pastebin.com/PgW4cWRs)

I tried two different movies, both being HVEC and I tried it on my television as well as my computer (playback). I also tried using a sample file from http://jell.yfish.us/ and it uses all cores about 80-90%, and caps at 120mbps HEVC 10bit main 10, whereas the movie is 56mbps, so it should be able to handle it easily. The movie is also HEVC. I tried switching audio to all the avaible audio outputs (TrueHD, DTS-HD and AC3) no luck.

Any ideas?

1 Like
2

Same issue here. Any info would be helpful.

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I need logs please PLUS be advised, certain decode and encode operations have thread count limits.

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