Question / Help High CPU usage with ATEM MINI switcher

yurkomik

Member
Hi. I use 2 ATEM mini switchers and iMac 2019 with 8 core i9 processor and 64GB of Ram.
Looks like even in the idle mode each ATEM mini webcam source consumes ~ 45% of the core. If I add two sources (MJPEG Webcam) I have ~100% CPU Core usage and 6-7GB of virtual memory use. That's even if current scene is has no webcam source or source is hidden.
I have the same situation on the Streamlabs OBS.
OBS reports 3-5% of CPU usage but cooler works as crazy and system monitor shows high load. I've added integrated iMac camera and lost 81 frames.
I guess that has something to do with the MJPEG video format full HD at 60 frames per second.
Is there any workaround other the using lower frame rates and resolution? Should I expect same CPU load on the windows machine?

LOG FILE: https://obsproject.com/logs/A8J09bEtRkSlI2U7
 

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