What does “Memory Tag 70” mean?

问题

The Xcode 4 Allocations profiling instrument may list "Memory Tag 70" as a type under the VM Tracker. Other types listed are MALLOC_LARGE, MALLOC_SMALL, MALLOC_TINY, "Core Animation", "CG Image", "mapped file", etc. What type of memory allocation does "Memory Tag 70" stand for?

回答1:

It's ImageIO memory, i.e. decoded images that are sticking around.

来源：https://stackoverflow.com/questions/6527651/what-does-memory-tag-70-mean