The memory-mapped API provides a way to represent memory addresses for efficient data access. It enables faster memory operations and simplifies data management by allowing for direct pointer manipulation.
- Memory Mapping: Creates a direct mapping between physical memory addresses and virtual addresses.
- Memory Pointers: Represent the address of a specific memory location. They're used to access data.
- Virtual Address: The address space used by a process to access data.
- When a memory address is memory-mapped, the system accesses data using the virtual address.
- It's particularly beneficial for accessing the same data from multiple processes or threads, improving performance.
Let's imagine we have a vector (array) of 10 numbers: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]. We want to load this into memory-mapped memory.
The memory-mapped address will be similar to:
0x1000Accessing data using this address will be extremely fast.
We will test this with a linked file called 'example.dat' which contains 10 numbers.
The value will be read at
0x1000Memory-mapped access offers significant advantages in performance for data-intensive applications.