Question / Help Ryzen 5 // 90/100% CPU usage without streaming on

[Ben_OnAir]

Hi,

I have been streaming for 3 weeks now on a strong computer and I haven't got any issue with OBS at all.
Since I got affiliated quickly, I wanted to thanks my viewer by putting a camera in my streams. I decided to use my Iphone as a camera because during lockdown in France Amazon doesn't have any logitech cameras available and prices are very expensive right now.
I'm using then the IOS Camera plugin for OBS
Everything worked well, but when I was doing my first stream with camera yesterday on Monster Hunter World, I had cpu usage at 100% as soon as I changed scenes. The cpu got mad at 100% and couldn't make it go lower. Thought it was because of the quality of my camera that was too high but it didn't change anything after putting it in 720p30 10 mbs bitrate.

I passed the whole day testing my rig to understand where the issue was coming from, thinking that maybe my Ryzen 5 3600x wasn't powerful enough to stream this much information, but after calling a friend computer technician, he told me that my cpu isn't the issue.

I decided to change all my overlay sources from 100mb 1920p .mov files eachto a 1Mb 1920p .webm files.
Thought it would change cpu usage, but it didn't, no impact at all. Mov files are even getting me 1/2% less cpu usage.

I understood then that it wasn't the streaming that was using all my cpu since I was at 90% usage of CPU with OBS (Animated overlay in webm / Webcam / game record / transitions in webm) and Monster Hunter World opened.
OBS was taking 35/40% and MHW 40% of my cpu, and I wasn't streaming at all.
I still got freezes when trying to change scenes.

I uploaded here the logs of a typical session with all the programs opened, game, webcam etc. Had my freezes during my transitions as usual.

I'll try to create a new OBS profile and add all sources one by one to see at which point the cpu is getting mad.
And depending of the outcome, I'll install a new OBS to a different location and try to repeat the process.

If you have any idea about why my OBS is doing this it would save my life as I'm working on it since yesterday night.

Here are my specs :
Ryzen 5 3600x
GTX 1060 6g
Windows : NVME
OBS : SSD
Overlay sources : HDD

https://obsproject.com/logs/faOoCzb9qYepX5iF

Ben_OnAir - Twitch My twitch channel to see what my overlay looks like.


Thank you so much for your help!

 

[Ben_OnAir]

I forgot to tell as well that I tried Hardware acceleration, but it didn't change anything in my cpu usage

 

[Ben_OnAir]

Decided to merge some media sources into one and put the black and white filter of the background to the file itself and now it's a bit better. My cpu doesn't struggle as much as before but still nothing marvelous.
I still get 100% whenever I'm doing a transition and having some lost frames.

https://obsproject.com/logs/0of7X9zwm5n75nLk

 

[BigYuckFou]

it is really hard to say what the issue might be. are you using the same PC to stream and game? is the ios camera ingested via USB? or browser source?

FYI the browser input is a resource hog. seriously it uses a ton of resources. I would assume using some type of USB camera would be best. I have a Logitech c920 to get rid of just in case...you want one.

 

[Ben_OnAir]

Hey! Thanks for the answer!
So I use the same computer to stream and game. I don't want to go dual now since I'm still small as a streamer, and I will have no use to have 2 computers outside of streaming.
The IOS camera is a plugin that emulates the iphone as a webcam via USB. It is not a browser source at all.
The only browser source I use is my follow/sub alerts because I have heard a lot how much cpu they use.

I don't want to buy a c920 because right now they cost 100 euros in France and the quality is much poorer than the iphone.

But anyway I have made some tests and the webcam doesn't consume that much cpu (5/10% max)

 

[arpeggi5150]

Having similar issues with a similar setup but not sure what the issue is as I am transferring over usb