StateOS: A Memory-Efficient Hybrid Operating System for IoT Devices

The increasing significance of operating systems (OSs) in the development internet things (IoT) has emerged last decade. An event-driven OS is memory efficient and suitable for resource-constrained IoT devices wireless sensors, although program’s control flow, which determined by events, not always obvious. A multithreaded with sequential flow often considered clearer. However, this approach memory-consuming. hybrid seeks to combine strengths approach. cooperative threaded represents a that supports concurrency explicitly yielding another thread. Although efficient, as threads are preemptive, it may provide sufficient real-time performance. This article proposes memory-efficient OS, called StateOS, devices. It an partial StateOS implements task scheduler combines two subsystems kernel processes on priority-based preemptive scheduler. provides adequate performance at low cost.