It think it uses a lot of extra memory as part of a design a tradeoff that keeps CPU overhead to a minimum. The documentation above mentions the memory cost in the limitations section.
By the way, there's a great talk from C++ Going Native 2013, called The Care and Feeding of C++'s Dragons [1] talking about a number new C++ tools, including AddressSanitizer. It's been two years since then, but it's probably still a good introduction.
By the way, there's a great talk from C++ Going Native 2013, called The Care and Feeding of C++'s Dragons [1] talking about a number new C++ tools, including AddressSanitizer. It's been two years since then, but it's probably still a good introduction.
[1] https://channel9.msdn.com/Events/GoingNative/2013/The-Care-a...