Howdy y'all.

We have evidence to suggest that there's a leak somewhere inside insertItemAtIndex:withSource:. When we repeatedly call this method (a few hundred thousand times) on a chart we will hit memory warnings. It's not immediately obvious because there are no leaking objects. The only thing we see is an accumulation of "persistent" Malloc'd bytes.

App launch:

Then a few minutes... (about 2 updates per second on 8 different series).

Steve said that this should be easy for you to test with your arsenal of test projects. Good luck!

One last thing, a detailed look at one of these 64 byte mallocs leads to a "responsible frame/caller" of "_dispatch continuation alloc_from_heap" (or similar). This yields Google results that look like _dispatch continuation alloc_from_heap, which may or may not be related.