Unreal Editor will consume 2x CPU or more when minimized or not in focus on OSX

General Feedback & Requests
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1

Hi Guys,

Repro video here. Basically, anytime you minimize editor CPU usage jumps 2x, after a while it 3x. For me usage pattern was:

  • 50% (normal)
  • 90% (minimized)
  • 130% (after one minute)

reason I noticed was that my fans started going nuts :slight_smile:

Thanks!

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EDIT: This is also case if editor is not in focus.

2

This is still case in 4.1. CPU jumps from 40% to 120% when UE4Editor window is minimized.

3

On Windows this issue also present but not is such a scale :slight_smile:
I have 4 core CPU and Editor permanently loads it ~35%, even when minimized.
Actually when I don’t need Editor to load CPU but don’t wanna close it I suspend it via proccess explorer from SysInternals.

4

Hey,

Sorry for delay in response, we’re just seeing this post now. Does this CPU jump still occur in 4.2.1? Thanks!

5

Hey ! Yeah, this is still happening, right now 4.2.1 jumps from 80% CPU on empty scene to 140% on minimize.

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6

Thanks ,

We’re looking into what could be causing this. I’ll let you know if I find out. Thanks for report!

7

Hi . Looks like this issue is fixed in 4.3. Just checked against preview build that I’ve just built :slight_smile: Looks likeusage sits around a very sane 50% when now in focus and drops to 5% when minimized. Also editor is running very slick overall :slight_smile: Very nice! Thanks you for your efforts!

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8

This looks to be fixed in upcoming 4.3 build, just checked by building changelist 2122033.

Not in focus: 50% CPU
Minimized: 5% CPU