Analysis

The PREEMPT_RT patch improves the worst-case latency numbers in RISC-V when compared to the current mainline version. The numbers show that the minimum requirements for a real-time operation are already fulfilled by this system. Also, the studied RISC-V system seems to be capable of achieving very similar latency figures as some other architectures that are already officially supported. This observation confirms that the RISC-V has future potential, but to get this setup feasible for production-level usage there is still plenty of work and verification ahead.

This chapter analyses the measurement results presented earlier in Cyclist Test ResultChapter 4. First, different aspects affecting the latency performance are discussed in Latency Analysis. Then, in Suitability for Real-Time Applications, the suitability of RISC-V Real-Time Linux in practical applications is analyzed in detail. Finally, future work related to this setup is discussed in Future Work.