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Research on Software System Fault Monitoring in Domestic Real-Time Operating Systems

Author(s)

Liang Deng

Affiliation(s)

The 29th Research Institute, China Electronics Technology Group Corporation, Chengdu, Sichuan, China

Abstract

In recent years, domestic real-time operating systems (RTOS) have been increasingly applied in mission-critical fields such as aerospace, energy and power systems, and industrial control. In these fields, the completeness, real-time performance, and traceability of fault information logging have become key technical requirements to ensure system reliability. In this study, we systematically sorted out the current development status of fault logging technologies in domestic RTOS, focused on analyzing the fault recording mechanisms of several mainstream systems including AcoreOS, Kylin, ReWorks, and RT-Thread, and conducted in-depth exploration on core technologies such as in-memory logging, eBPF-based dynamic tracing, dynamic fault code registration, and multi-dimensional diagnostic tool matrices. Through actual experimental tests, we found that the in-memory logging service can reduce the record latency to 0.5% of the file system latency, while achieving a write throughput of 270 MB/s, which is 6 times faster than that of SSDs; the eBPF technology can realize panoramic kernel observation with a performance overhead of less than 1%, and can automatically capture abnormal phenomena such as sudden spikes in CPU syscall usage and accumulation of D-state processes; the dynamic fault code registration mechanism effectively improves the portability and scalability of the system. Based on comprehensive experimental data and technical comparison analysis, this study provides systematic reference opinions for promoting the improvement of fault diagnosis capabilities of domestic real-time operating systems.

Keywords

Domestic Real-Time Operating System; Acoreos; Kylin; Rework; In-Memory Logging; Ebpf; Dynamic Fault Code Regist-Ration; Multi-Dimensional Diagnostics

References

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