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henrygrover
henrygrover
Participant
June 18, 2024
Question

Denoise AI performance issue on Apple M1 in LR Classic 13.3.1

  • June 18, 2024
  • 1 reply
  • 438 views

Hi there. I'm using an M1 MacBook Pro with OS Sonoma 14.5 and Lightroom Classic 13.3.1. Denoise AI works fine when I process an image, but once the Denoise is complete, the computer performance drops dramatically taking several seconds to perform each subsequent operation, even just moving on to the next image. Closing and reopening Lightroom Classic fixes this issue until I run Denoise on another file and then the same things happens again. Any ideas what the problem might be? 

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1 reply

Conrad_C
Community Expert
Conrad_CCommunity Expert
Community Expert
June 18, 2024

I don’t know the cause but this is how I try to find it.

 

Open Activity Monitor (in the Utilities folder on every Mac) to try and monitor what is causing the slowdown. When the post AI Denoise slowdown happens:

  • In the CPU tab, if Idle % is very low, are any applications using more than 100% CPU? (100% = one CPU core, so if your M1 has 8 CPU cores then full usage would be 800%.) 
  • In the Memory tab, what is the Memory Pressure graph color? (Green means memory is not a problem) 

 

How much unified memory does that M1 MacBook Pro have?

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