I've been trying to debug some private byte allocation leaks in my application and finally think I've narrowed it down to the PictureMarkerSymbol.SetSourceAsync() method.
My use case consists of updating n number of PictureMarkerSymbol sources/geometries on the map once every ~100ms. Through a combination of Redgate, WinDbg, and ultimately DebugDiag I pinpointed the culprit (I think) to RuntimeCoreNet calling into msvcr120::malloc.
I'm setting the source of my PictureMarkerSymbols like this:
private async void periodicUpdate()
BitmapFrame frame = BitmapFrame.Create(this.someBitmapSource);
PngBitmapEncoder encoder = new PngBitmapEncoder();
using (Stream stream = new MemoryStream())
Has anyone else encountered this issue? Am I setting the source incorrectly or otherwise missing something else? The leak seems to be pretty linear in growth and will generate an OutOfMemoryException fairly reliably.