Unity Editor - Severe performance delay for most actions?

Questions & Answers
1

Problem

This came seemingly out of nowhere. Virtually anything I do in the editor is followed by a delay in which every aspect of the editor is frozen for about 10 seconds. I have tried everything I can think of and will soon have to reformat my entire machine if I can’t figure it out.

It appears to be related to the editor UI, such as when I select a new asset or open a new tab/window. It’s so unusable that it’s actually hard to even test since it takes so long to do anything.

I welcome any and all suggestions, this one has me stumped!

Troubleshooting

The only recent change I can think of was installing the latest version of Cubase AI. I uninstalled Cubase and everything that came with it.

  • Symptoms occured in 5.6.2 as well as 2017.1
  • I have tried it in completely new (empty) projects with no difference.
  • I removed all versions of Unity and installed a clean copy of only the latest.
  • I also reinstalled my latest video card driver and audio driver.
  • I have tried forcing Unity into OpenGL, D3D9, 12, etc.
  • I cleared all Unity preferences from AppData folders
2

Try to deactivate GL Illumination at the Lightning Settings tab. It helps.

GL Illumination and GL Baked Illumination are two huge mistakes of Unity. And, I must say, really bad to preformance. They Take most of processing of both the CPU and the GPU (and even a lot of RAM). So, deactivate it for your own sake.

Hope I’ve helped.

3

Thanks! I had this exact same issue. Your post finally gave the hint I needed to find the culprit. My Unity install started freezing last monday, kept persisting between projects and Unity reinstalls.

You mentioned you have an Oculus setup. I’ve got the Oculus software installed too. Coincidentally, Oculus released an update this week, which seems to be the culprit.

Easy fix: stop the OVRService in Task Manager → Services for now, and throw a bug report at Oculus.

4

For me, this happened after 1h of work in unity. One of my Oculus cameras went red and after that Unity started having issues. I fixed this by unplugging the camera that was on red and it went green and all was good :smiley:
( repost from reddit )