Examples leak memory when minimized / hided by another window on macOS

[teenjuna]

I think it's related to #174. Here is a demo for minimal-winit:

Untitled.mov

[teenjuna]

I think there's an issue with video displaying. Here is the direct link: https://user-images.githubusercontent.com/53595243/134104056-caa2d953-0302-4e55-a9d6-e40a09cc2c36.mov

[parasyte]

Is this test being run on an M1 Mac? It is possible that the leak is caused by gfx-rs/wgpu#1783

#174 is responsible for creating thousands of frames that never get displayed (so the uptick in memory usage is expected) but it shouldn't cause any "permanent" leaks.

[teenjuna]

Yeah, this is indeed being run on M1 Mac.

[parasyte]

Thanks for the confirmation. The leak is definitely caused by the upstream wgpu issue linked above. We'll need to use whatever they implement to fix that one.

I'll keep the bug label on this one though, since the lack of rate limiting when windows are occluded on examples is definitely our bug. :)

[teenjuna]

Okay :)
Thank you for the response!