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NVIDIA RTX A4000 - CPU Overload
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commerz81  
#1 Posted : Saturday, August 20, 2022 10:26:58 AM(UTC)
commerz81

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I'm using a system with NVIDIA RTX A4000, 8 CPU, 32GB RAM and running 2 outputs on one vMix instance. During live streams, I realize that my CPU usage is always about 60-65% but GPU is less than 5% usage. Is there a way I can make vMix use more of GPU to reduce the load on my CPU?

Thanks, everyone.
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paco3346  
#2 Posted : Saturday, August 20, 2022 2:14:24 PM(UTC)
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It depends on what your inputs are. Hardware inputs (DeckLinks, AJA, Magewell cards) won't use CPU at all. NDI is very CPU heavy.

Can you share inputs, outputs, and stream details?
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commerz81  
#3 Posted : Saturday, August 20, 2022 5:37:35 PM(UTC)
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Originally Posted by: paco3346 Go to Quoted Post
It depends on what your inputs are. Hardware inputs (DeckLinks, AJA, Magewell cards) won't use CPU at all. NDI is very CPU heavy.

Can you share inputs, outputs, and stream details?


Thank you for the response. I'm actually not using any hardware inputs. I'm using the Web Browser as my input, and in my Streaming settings, I use Hardware encoder.
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paco3346  
#4 Posted : Sunday, August 21, 2022 4:04:59 AM(UTC)
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The web browser input is the source of your high CPU. It's a great feature but not the most performant.
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thanks 1 user thanked paco3346 for this useful post.
commerz81 on 8/21/2022(UTC)
mjgraves  
#5 Posted : Monday, August 22, 2022 5:55:48 AM(UTC)
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Run the web browser on a separate computer, using hardware capture or NDI screen capture to collect it as a source.
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thanks 1 user thanked mjgraves for this useful post.
eduardocfs on 8/22/2022(UTC)
mgrayeb  
#6 Posted : Wednesday, November 23, 2022 3:29:30 PM(UTC)
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mjgraves, is NDI Desktop Capture of a web browser on another computer less CPU intensive than a Web Browser input on the vMix Production PC? I thought NDI was CPU-intensive? I guess it's all relative? Thanks.
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