Journal of Embedded Systems & Its Applications ISSN: 3139-2296 (Online)

Authors: Ankur Joshi, Shyam Lal Thakur, Harender Prasad, Gautam Verma

Abstract: Real-Time Operating Systems (RTOS) form the backbone of safety-critical systems, ensuring deterministic behavior and timely response under strict operational constraints. Safety-critical applications such as automotive control, medical devices, aerospace, and industrial automation depend heavily on RTOS to maintain system reliability and minimize risks. This paper reviews the recent advancements and optimization strategies in RTOS design, focusing on scheduling, resource management, fault tolerance, and security mechanisms. Various RTOS kernels and their performance in real-time applications are compared, highlighting the tradeoffs between efficiency, reliability, and maintainability. The study also emphasizes the significance of formal verification and predictive analysis in reducing system failures in safetycritical environments. Finally, the paper discusses emerging trends and challenges in RTOS optimization for future safety-critical applications.

Keywords: Real-Time Operating Systems, RTOS Optimization, Safety-Critical Systems, Task Scheduling, Fault Tolerance, Resource Management, Formal Verification