How is the memory allocation process carried out in the system at the moment of an allocation request?

In Go, the process of memory allocation begins with a request through the built-in functions make or new, or when creating variables. Internally, Go uses its own memory manager and garbage collector.

When requesting memory:

1. It first checks if there is a suitable free block in the heap.
2. If not, a system call is made to allocate new memory (for example, via mmap or sbrk).
3. The allocated memory is divided into objects of the required size.
4. The memory is initialized to zero.

Go uses different memory pools for objects of different sizes, which speeds up allocation and reduces fragmentation. The garbage collector is responsible for freeing unused memory, allowing developers not to worry about manual memory management.