Question / Help OBS CPU 95% and more

[Juniorz2k10]

Hello Guys,
first at all, sorry for my bad english skills.

I have a problem with Streaming. My PC Specs:

i7 8700k @4,4-4,7gHz
GTX 980 TI
ROG Maxmimus X Hero
16gb DDR 4 3000
650W Power
Upload 10mbit constant

I use a Single PC setup for Stream/Gaming

my OBS Settings are:
i dont record my streams

Output:
x264
1280x720
CBR
Bitrate 4500
Keyframe 1
Processor on Medium (fast and Faster same issues)
Profil: main

Video:
1280x720 scaling
Lancos
60fps

https://i.imgur.com/rISA9PL.png - TaskManager while Teststream with Twitch Inspector
https://i.imgur.com/QDSrInZ.png - Scene Manager (all browsersource are off, while using an other Scene)
https://i.imgur.com/Y18Lmw0.png - OBS Settings (change the bitrate to 4500 and medium)
https://i.imgur.com/sTui3MB.png - OBS Settungs (using 60fps not 30)

I also tested to stream with gpu but then i got fps drops and the games are unplayable.

Maybe anyone have a ideo to reduce cpu usage?
A streamer told me he streamed with a single pc and have cpu @ 20% and gpu at 10-15% ... he doesnt tell me how. Maybe i got problems with my pc?

Thank you for reading this bad english. Hope you can help me. I have no troubles to read english, but to write own words is not that easy for me.

 

[Osiris]

Please post your log.

 

[Juniorz2k10]

This was a test yesterday

 

[Juniorz2k10]

This was a test yesterday

this is me playing far cry 5 for 45minutes with obs and test stream

 

[Juniorz2k10]

No one an idea?

 

[DEDRICK]

Create a new Scene collection or disable all of your Browser Sources and re-test. Widgets can bug out and jack your CPU usage through the roof

 

[Juniorz2k10]

I allready create all new, and disabled all browser soruces ... and nothing helped

 

[Juniorz2k10]

Maybe any other ideas? Got cpu usage from 65-99% Most more than 90%

 

[BigFist]

how about changing the cpu affinity and priority ? I would try to give obs only 2 cores and take these two from far cry and set both prioritys to high.

 

[Juniorz2k10]

i will try it later at home. You mean 2 cores fixed for obs and the other 4 are open for all tasks? or 2 more fixed for the game i actually play?

 

[BigFist]

With your 8700k, you have 12 Threads. Windows sees it as 12 cores. You go into the task manager -> details-> right click on the program -> set affinity. Uncheck <all processors> and let only those cpus check which you wanna be active for the program

Exapmple :
cpu affinity for OBS : cpu 0-1
cpu affinity for far cry : cpu 2 - 11

 

[Osiris]

Which processes are using all that cpu?

 

[Juniorz2k10]

49% obs 49%game - 2% other tasks
you can see it on my picture above "Taskmanger and Teststream"

 

[Osiris]

Got a screenshot of the Details tab? Sorted by cpu usage.

 

[BOLL]

Create a new Scene collection or disable all of your Browser Sources and re-test. Widgets can bug out and jack your CPU usage through the roof

Uhoh, I have recently experienced OBS taking 30-35% CPU, which is more than a whole core on my i5. I do have 7 different browser sources... but it has been fine up till now. But it is known that browser sources can freak out? I sure wish there was some profiling option for sources so I could see what part(s) of the overlay is causing my issue, I'll try to lower frame-rate on a few of them and see if it helps.