Memory leak in empty game?

I’ve been trying to track down what appears to be a memory leak. I assumed it was something I was doing at first, but it appears to be something with Unity. I’ve seen this in 2017.1.0f3 and 5.6.something (sorry, don’t have that in front of me). Here is what I’m seeing:

  • create a new game project and leave it completely empty - no camera no scene, nothing
  • build it for Windows standalone (not development) - doesn’t matter if it’s the old or new experimental Mono, also doesn’t seem to matter if it’s UWP, but stick with windows x86/x64 for now
  • close out of Unity, run the game
  • bring up task manager and find the game under the “details” tab
  • the memory usage will move around quite a bit for a while, but eventually settles into increasing at a regular 5 second interval

I just ran an empy game over night and it started out at around 150MB and ended at 300+ MB this morning.

I’ve done develop builds as well and the profiler doesn’t show any increase for an empty build - memory usage there is steady.

So can anyone explain what this apparent leak might be? Or should I just file a bug report.

Bug report sounds appropriate.