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LukeOrlando
Participating Frequently
May 21, 2024
Question

Slow render times m3 max?

  • May 21, 2024
  • 1 reply
  • 1924 views

Hi all. Just got the new macbook and been loving the speed. Was rendering out deliverables like it was nothing when suddenly... that stopped? Render times increaased exponentially for just about no reason? I've restarted the computer and installed an update, moved clips into new sequences but issue persists. Occuring in both AME and natively in Premiere Pro.

 

For reference, editing non-transcoded RED 6k footage alongside non-transcoded Canon r5 4k footage. Cutting 60s spots. Exporting 1920x1080 H.264.

 

First few renders were done in around 10 seconds. Now more typically  1:1 ratio, taking anywhere from 45s to 2mins for each export. 

 

I understand that I should be super stoked that I'm working with 6k and 4k footage and its only taking a couple minutes for each export. But I have to make like 50 of these so every second counts, trying to get to the bottom of why it was initially so fast and then randomly dwindled. 

 

MBP 16:
PROCESSOR AND GRAPHICS M3 Max with 16C CPU, 40C GPU
MEMORY 48GB unified memory
SOLID STATE DRIVE 1TB SSD storage

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    1 reply

    EckiAME
    Community Manager
    EckiAMECommunity Manager
    Community Manager
    May 22, 2024

    Sorry for your issues. Can you monitor the memory usage? Can you restart between encodes to clean up the memory? I am trying to find the root cause. I will file a bug if I have a repro case with media.

    L
    LukeOrlandoAuthor
    Participating Frequently
    May 22, 2024

    Somewhat of an update, perhaps more of a Premiere Pro issue than an AME issue? Details below:

     

    - was able to isolate issue to certain sequences I'm editing. 

    - The sequences that take longer aren't inherently that different - one is 60s the other is 64s total length. Both consist of intercut RED + Canon footage with LUTs applied through Lumetri.

    - 60s sequence takes about 14s to export and on average used about 65-75% GPU.

    - The other sequence takes about 40s to export and crept up to 94% GPU usage and stayed there until complete.

    - Project settings and export settings are identical

    - Same amount of effects applied on each sequence


    Attached screenshot of activity monitor during exports + export settings.

    Can send more screenshots/data if helpful.

    L
    LukeOrlandoAuthor
    Participating Frequently
    May 22, 2024

    Can you confirm that the direct export is also slower? Then I would move this thread over to Premiere Pro Bugs.


    its not much, but direct export from premiere pro is slightly faster, GPU usage lingering more around 80-85%. Difference of 30s vs 45s on a 1min video, and 1.5 mins vs. 2 mins for a 2min video.

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