High-Performance Embedded Computing

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Chapter

Processes and Operating

Systems

■ Real-time scheduling

■ Scheduling for power/energy

■ Performance estimation

■ Operating system mechanisms and overhead

■ Embedded file systems

■ Concurrent system verification

Many embedded systems must perform several tasks simultaneously. Real-time

operating systems (RTOSs) allow a single CPU to juggle multiple processes.

Unlike general-purpose operating systems, RTOSs must adhere to strict timing

requirements. They may have to minimize energy consumption while they obey

those timing requirements.

We start by describing real-time scheduling methods, including both tradi-

tional scheduling algorithms and newer ...