Dolby Atmos Render CPU on macOS

[shawnhonsberger]

Hi all,

Why does the Dolby Atmos Renderer on macOS take so much CPU? What does its CPU meter represent? A single core? A single process?

I'm using a reasonable amount of re-renders, 5.1, ST, 7.1.4, and using loudness and binaural, but why is the CPU so high? Editing these settings and turning off re-renders makes very little difference.

My specs are below, but I am running v5.1.0_793-98966d0d on macOS 13 on a M2 Ultra Mac Studio (20 core, 192 ram). This has been an issue on all versions of macOS 13 so far. Ironically, before I got rid of my M1 iMac, it the Renderer was only using 20-30%. I'll add screen shots of my settings. Is this just a DVS thing?

What am I doing wrong?

Pro Tools Ultimate 2023.9
DAR 5.1.0_793-98966d0d
DVS 4.3.1

[creativecontrol]

DVS on Silicon appears to take way more resources than the Intel version. Open up Activity Monitor and see for yourself. DVS is handy, but hardware IP is always best.


Jeff

[gives]

Originally Posted by creativecontrol

DVS on Silicon appears to take way more resources than the Intel version. Open up Activity Monitor and see for yourself. DVS is handy, but hardware IP is always best.


Jeff

I was wondering that also, but this explains it. I sort of ignore the CPU in the Renderer. I never have had any issues with running out of memory even when I had my old Mac Trash Can. Still, they are probably due for an update, which I would think be in the works.

G

[shawnhonsberger]

Thank you, both! I appreciate you!

[gives]

Originally Posted by shawnhonsberger

Thank you, both! I appreciate you!

Sure! I guess I was a bit of help, but CreativeControl is very good at these questions!

G

[kingtone]

Originally Posted by shawnhonsberger

My specs are below, but I am running v5.1.0_793-98966d0d on macOS 13 on a M2 Ultra Mac Studio (20 core, 192 ram). This has been an issue on all versions of macOS 13 so far. Ironically, before I got rid of my M1 iMac, it the Renderer was only using 20-30%. I'll add screen shots of my settings. Is this just a DVS thing?

What am I doing wrong?

Pro Tools Ultimate 2023.9
DAR 5.1.0_793-98966d0d
DVS 4.3.1

Did you ever get progress on this? Im moving towards a similar setup and looking at specs for an M2 Ultra...

[creativecontrol]

Dolby has acknowledged that this is unique to the Mac Studio Ultra and not actually using more CPU usage - but rather - has to do with the way the threads are used. My understanding is that they are refactoring how to adjust the CPU meter to show the actual values which are less than what is currently displayed.



best,


Jeff

[kingtone]

Originally Posted by creativecontrol

Dolby has acknowledged that this is unique to the Mac Studio Ultra and not actually using more CPU usage - but rather - has to do with the way the threads are used. My understanding is that they are refactoring how to adjust the CPU meter to show the actual values which are less than what is currently displayed.



best,


Jeff

Thanks Jeff,
That is good to hear.
I was looking at OP's ram specs and thinking only having 64gb would be useless, but maybe I could get by with it. (main factor really is wait time than cost right now)

[shawnhonsberger]

Thank you, all! This was solved for me in 5.2.0, though I use the internal renderer now. :) Sorry for my lateness. I've had some sporadic trouble posting replies.