However, heaps aren’t as simple or as efficient asstacks. As mentioned, how memory in a heap is allocated and deallocatedis typically affected by the programming language the OS is based upon,such as ...

The stack is an area of RAM where a program stores temporary data during the execution of code blocks. Typically statically allocated, the stack is operates on a “last in, first out” basis.

Google's heap scanning consists of a set of algorithms it calls StarScan (*Scan). But one version of *Scan caused a memory regressions of 8% in Speedometer2 browser performance benchmark tests.