3. Memory Management in Real-Time and Embedded Operating Systems
Memory management in real-time and embedded operating systems focuses on ensuring predictable behavior, efficient resource utilization, and system stability. These systems operate with limited memory, making deterministic allocation vital. Strategies include both static and dynamic memory allocation, with an emphasis on minimizing fragmentation and optimizing memory usage for safety-critical applications.
Sections
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What we have learnt
- Memory allocation is crucial for real-time and embedded systems to maintain predictability and efficiency.
- Static memory allocation is preferred over dynamic to avoid unpredictability.
- Memory management techniques like pooling and protection mechanisms are essential for system reliability.
Key Concepts
- -- Static Memory Allocation
- Memory that is assigned at compile-time, providing deterministic behavior.
- -- Dynamic Memory Allocation
- Memory allocated at runtime which offers flexibility but introduces risks such as fragmentation.
- -- Memory Pool
- A method of managing memory by using fixed-size pre-allocated blocks for predictable and efficient memory allocation.
- -- Memory Protection Unit (MPU)
- A hardware feature that enforces access rules to memory regions, enhancing security and stability in embedded systems.
Additional Learning Materials
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