Memory profiling

I’m looking for some tips on how to figure out why my cesium app is using so much darn memory. ;o)

Task Manager tells me that my Chrome tab is using ~1.3 GB of memory. But if I do a heap snapshot in DevTools, it tells me that the js heap is only 82 MB.

I know that some of that is Chrome itself, but since most of my tabs use far less memory, I assume that the rest of it is hidden in the cesium canvas in some manner (images? memory incurred by the 3D graphics? unzipped .kmz files?).

I’m curious if anyone has any tips on how I could gain insight on how I have crammed so much memory into my app. ;o)