What features of the stack make it work faster than the heap?

The stack operates faster than the heap due to several features:

• Ordered structure: the stack is LIFO (Last In, First Out), where memory allocation and deallocation happen sequentially and predictably. This allows the CPU to manage memory efficiently without complex operations.

• Data localization: stack data is usually placed close to each other, which improves CPU caching and reduces cache misses.

• Lack of fragmentation: in the stack, memory is allocated and freed following the stack principle, which prevents fragmentation, unlike the heap where memory can be scattered.

• Minimal overhead: managing the stack boils down to a simple pointer change, whereas the heap requires searching for free blocks, possible defragmentation, and managing complex data structures.

Due to these factors, memory allocation and deallocation operations in the stack occur very quickly and efficiently compared to the heap.