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How does the kotlin.native.internal.GC class work when I’m on the new memory model? The comments indicate that it controls the old ARC-like GC. I’m getting memory leaks in my app right now while interoping with a C library, so I’m mixing Kotlin’s GC with manual malloc/free. I’d like to be able to force a GC periodically so I can see the memory impact of my malloc/free objects.

Edit: Adding GC.start() before seemed to force a GC. I now see a sharp drop in memory usage immediately.

I see no change in memory when I call GC.collect(). If I let the code run longer, however, I can see the memory suddenly drop periodically, indicating a GC cycle. My code is running in a loop, so the objects in use by the Kotlin memory model should be consistent at the end of any given loop iteration.

After getting the GC to trigger, I verified that the leak is something that I allocate from the C library, not an object in my Kotlin code. Guess I’ll have to brush up on valgrind :grimacing:

Thanks to this post. Noe I know about GC.start() and GC.collect()