Os Memory Management Questions Medium
The purpose of a memory allocation technique in memory management is to efficiently and effectively allocate and deallocate memory resources to different processes or programs running on an operating system.
Memory allocation techniques ensure that each process gets the required amount of memory to execute its tasks, while also preventing memory conflicts and fragmentation. These techniques help in optimizing the utilization of available memory and improving the overall performance and stability of the system.
Some common memory allocation techniques include:
1. Contiguous Memory Allocation: This technique divides the available memory into fixed-sized partitions and assigns each partition to a process. It ensures that each process gets a contiguous block of memory, but it can lead to external fragmentation.
2. Non-contiguous Memory Allocation: This technique allows memory to be allocated in a non-contiguous manner, using techniques like paging or segmentation. It helps in reducing external fragmentation and allows for more efficient memory utilization.
3. Dynamic Memory Allocation: This technique allows processes to request memory dynamically during runtime. It uses techniques like malloc() and free() to allocate and deallocate memory as needed. It helps in optimizing memory usage and allows for more flexibility in memory management.
Overall, the purpose of memory allocation techniques is to ensure efficient utilization of memory resources, prevent conflicts, and enhance the performance and stability of the operating system.