Thanks for the info. Is there a way to get the Allocation timeline to report about all allocations though? It seems to only report objects that are uncollected (that show up as blue in the timeline). That's useful for finding true leaks, but in my case (trying to fix a sawtooth pattern of heap usage), stuff that was allocated and then quickly GC'ed is exactly what I want to know about. Or am I looking in the wrong place?