CPU usage

[rxn123talon 0]

Recent convert from Plex here.    I am running my Emby server in a hyper-v guest on a Threadripper 1950x with access to 32 logical processors.   I found it much more hard drive intensive, so I put a dedicated Samsung 960 NVME drive in for this VM.  

 

My question....  I am seeing ~22% cpu usage when streaming a live program (it has a HDHOMERUN Prime tuner) over my LAN to a web client.   This seems ridiculously high for one stream.   Is this normal?

 

Edit: I'm running server Version 3.2.30.0

Edited September 9, 2017 by rxn123talon

[legallink 187]

Transcoding is done by ffmpeg. The 22% is highly dependent on how many cores are accessibly in the hyper-v. Etc. if it really has access to 32 cores, that % seems way off. Extremely high in my opinion.

 

I run a 2500k and I have around 50% CPU usage when running a live tv transcode.

[rxn123talon 0]

That's what I was thinking.   This processor has 32 logical cores to it (what are available to the guest VM).   I'm seeing the following breakdown now:

 

Emby server 20.6% CPU

ffmpeg 2.6-3.1% CPU

 

It seems that ffmpeg isn't the hog... 

[rxn123talon 0]

After a few system restarts this seems to have calmed down to 5% usage... dunno but will monitor.

[Luke 42085]

If you can attach the emby server log then we can try to provide some insight about it. You can learn how to do that here:

 

https://emby.media/community/index.php?/topic/739-how-to-report-a-problem/

 

Thanks.

[rxn123talon 0]

Looks like my log files are filling up with this one error...  Could you provide any insight?   I think this is where my CPU usage is coming from (as it finally grinds my VM down)

server-63640770248.txt

[Luke 42085]

how many hdhomeruns do you have?

[rxn123talon 0]

I only have one HDHomerun Prime.

 

Edit:   I have removed and re-added this HDHomerun during setup when I was initially figuring out how I wanted Emby configured (channels and all).   The server settings only show one.

Edited September 13, 2017 by rxn123talon

[Luke 42085]

Is the source mpeg2video? I would expect some cpu usage while transcoding that.