Performance on Mac

Hi,

I’m a new UE4 user, and I’m getting abysmal speed on my top of the line .

I noticed according to Sample and Quartz Debug that even while it’s in the background, the editor is polling for events AND redrawing the entire UI every screen update, regardless of whether the app is in the background or not. That’s where all the CPU time appears to be going.

I’m not sure where to file bug reports, though. Where do I do that?

Thanks!
-Chilton

By the way, Unity’s 6.7 is not acceptable there either. Mac apps should drop to zero when they’re in the background.

Hi,

Have you enabled the option to reduce CPU usage in the background? It can be found from the Main Menu:
Unreal Editor > Preferences… > General > Miscellaneous > Performance > Use Less CPU In Background

That’ll bring CPU usage to around 3-4%, which should be sufficient. The Unreal engine, including the editor, updates in discrete frames using OpenGL to render, so it can’t be fully suspended in the background like a regular, event-driven, cached-rendering OS X/Cocoa application.

Yeah, I have had that on from the start. Here’s a screenshot.