High CPU Usage Despite Direct Play for Audio/Video and No Subs

Plex Media Server
,
1

For about the past 2 weeks I’ve been having a weird problem with some off behaviour.

First, my server seems to have high CPU usage despite claiming to be Direct Playing.

Second, for about 30 seconds the server dashboard isn’t catching up to show there’s something being streamed, shown in image 1.

Third, while being streamed, the CPU usage on the dashboard and task manager are vastly different, as you can see in image 2.

This happens for select videos only.
Included plex logs,
Plex Media Server Logs_2023-12-29_22-24-08.zip (1.4 MB)

Also a text file showing the ‘Get Info’ details of the video in question, Flight, and a video this bug doesn’t happen with.

video difference.txt (2.4 KB)

Thanks in advance.

Server Version#: Plex Media Server for Windows Version 1.32.8.7639 64-bit
Player Version#: Plex For Windows - Plex-1.84.1.4069-ff740b6d 64-bit

cpu usage1
cpu usage1689×725 53.3 KB

cpu usage2
cpu usage2689×725 59.9 KB

2

Are player and server running on the same machine?

3

No, client is windows 10 as well, server 11, forgot to mention.

4

Does this problem happen when you use a h.265 (HVEC Main 10) or standard h.264 file?

You’re using Plex for Windows as the client, correct?

I made the mistake of encoding some videos as h.264 High 10 like the video you’re having a problem with. I have since purged my server of all of them due to playback problems on multiple devices

I also notice that Plex for Windows at times doesn’t call for a transcode when it actually should be. It tries to direct play 4k HDR files on a 1080p SDR monitor and incompatible audio formats. It fails to start, buffers and skips constantly but I never actually paid attention to my CPU usage

The DTS also makes me wonder. Should that be direct playing on your computer?
I have a strange feeling you may get some transcoding if you try it in Plex Web

5

This is still happening, and it’s frequently causing my Plex to seem unreachable because of maxed out CPU load. I can’t access it 80% of the time while someone is direct playing, I have to keep refreshing.

I have no idea what to do.

6

I deleted my database and re-installed Plex.

Everythings fine now. No idea what was wrong.

7

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