Skip to main content
lfallo1
Participating Frequently
October 19, 2022

Render Queue Slows Dramatically when AE window loses focus

  • October 19, 2022
  • 5 replies
  • 292 views

Strange AE issue that I'm experiencing, in that during any final render (Render Queue), if I minimize the AE application window or give focus to another non-AE window (i.e., if i bring the focus to a web browser), the render queue performance drops dramatically. (in task manager [or activity monitor on a mac] I can see the GPU usage dropping from ~15% to ~2% and a similar 5x-7x drop in the CPU usage - moments after i minimize the application)

 

I originally noticed this on my PC (v22.5.0) and after an OS update have noticed on my macbook as well (am using 17.1.1 on the mac).

 

Been using AE for well over a decade and never experienced this behavior.  Wondering if anyone has seen the same thing or had any ideas.  Current workaround is to simply not use the mac or PC at all when Render Queue is active & ensure the AE application is both active and has the machine's focus.  

5 replies

lfallo1
lfallo1Author
Participating Frequently
October 19, 2022

@JohnColombo17100380 I ran four tests on a small render on my Windows machine (2min, 1920x1080 24fps clip with a tint effect applied .. i ran the render twice for each scenario [window maximized, window minimized]).

 

With the AE window in focus, the render finished in 1min 4sec & then 1min 5sec .. With the window minimized, the render finished in 1min 45sec and 1min 50sec, respectively.

 

Multi-frame rendering is disabled.  Aside from this, I don't recall modifying additional global settings (I did also try one render each with project rendering setting as Mercury GPU Acceleration (CUDA) & then as Mercury Software Only - but this did not have a significant impact on this paricular render).  This is on AE v22.5.0

lfallo1
lfallo1Author
Participating Frequently
October 19, 2022

When using AE 17.1.1 on the mac, I didn't have the memory/performance option and am using what I assume would have been default settings. (fwiw, the issue didn't appear on my Mac until after an OS security update to Catalina 10.15.7 ... so on the mac, it's possible this is an OS related / compatibility issue).

 

I can also run a render on my Windows workstation tonight, and try to replicate.

JohnColombo17100380
Community Manager
Community Manager
October 19, 2022

@lfallo1,

Thanks for reporting this issue. Do you mind sharing what your settings were previously and what settings allowed you to render with After Effects in the background? If the default settings indeed don't allow After Effects to render while it's not in focus, that is something we would like to address.

 

Thanks for reporting this issue and for any further information you can provide, 

- John, After Effects Engineering Team 

lfallo1
lfallo1Author
Participating Frequently
October 19, 2022

Thanks for the reply.  v17 doesn't have the Performance menu on mac, but got me thinking so i re-installed 22 on the mac (which does have the memory/performance options) and I was able to explicitly set the usage & that does seem to now allow background rendering again.

 

Don't know why/how that would've sporadically been affected in the version I'd been using, but in any case, seems to be working for the moment on the Mac.

Mylenium
Legend
October 19, 2022

Turn off multiframe rendering and check your memory and performance settings. I suspect it has soemthing to do with AE polling available resources and thinking it needs to allow more CPU power and memory for other apps.

 

Mylenium