Hitting memory limit

No, they're not part of it.

Do you have a clue, what these figures mean in the "Size" column. I would assume bytes, but when I sum them up, its is more then the summary show at top.

Interesting! I never saw anything like that. In my apps the total of the "including children) + code + data are a few kB less than the Memory Usage.

Are you using extended code space by any chance?

not to my knowledge :-)

i use svg file for icons - may that be an issue?

No. I use svgs as well. And even if you load all of them and hold on to them it makes no sense that you can have more than the total amount of memory.

I have another idea though: is it possible you have cyclic references between some of your objects? Maybe that makes the memory view crazy, and counts them more than once (though, arguably if it's smart enough to not to count them endless times, then it could also count them only once...)

Well, as you can see - I have objects which are referenced by multiple other objects. Like the ProviderRegistry, which is instantiated once, but referenced by all ViewControllers. I don't know how this counts.

I hit the OOM problem and don't know how to solve it. Even when I remove all my ViewControllers, I gain 30-40kb only. This is mad.

I found something interesting: the memory viewer actually knows how to deal with circular references:

if the forum would let me to add a screenshot....

only after editing the post, and crop the image to miniscule

what happens if you move the controllers array to global?

yeah - these are some kind of ID's which appear multiple times. So the sum can't be used to identify the hog.