摘要
实时操作系统(RTOS)在嵌入式系统中广泛应用,尤其是在低功耗设备中。随着物联网和移动设备的发展,基于RISC-V架构的RTOS需要解决如何在保证实时性和可靠性的同时降低功耗的问题。低功耗调度策略是实现高效能与节能平衡的关键。本文探讨了RISC-V架构下RTOS的低功耗调度策略,分析了不同调度算法的优缺点,并提出了适用于RISC-V的低功耗调度方法。基于任务特性和优先级的动态调度能够显著提高能效,并且能够满足实时性要求。本文的贡献在于为RISC-V平台下的低功耗实时调度提供了新的思路和方法。
关键词: RISC-V架构;实时操作系统;低功耗;调度策略;动态调度
Abstract
Real-Time Operating Systems (RTOS) are widely used in embedded systems, especially in low-power devices. With the development of the Internet of Things (IoT) and mobile devices, RTOS based on the RISC-V architecture needs to address the challenge of reducing power consumption while ensuring real-time performance and reliability. Low-power scheduling strategies are crucial for achieving a balance between high efficiency and energy conservation. This paper explores low-power scheduling strategies for RTOS on the RISC-V architecture, analyzes the advantages and disadvantages of different scheduling algorithms, and proposes low-power scheduling methods suitable for RISC-V. Dynamic scheduling based on task characteristics and priorities can significantly improve energy efficiency while meeting real-time requirements. The contribution of this paper lies in providing new ideas and methods for low-power real-time scheduling on RISC-V platforms.
Key words: RISC-V architecture; Real-time operating system; Low power consumption; Scheduling strategy; Dynamic scheduling
参考文献 References
[1] 韩金池,王智栋,马浩,等.Spike-FlexiCAS:支持缓存架构灵活配置的RISC-V处理器模拟器[J/OL].软件学报,1-16[2025-06-24].
[2] 李奕瑾,杜绍敏,赵家程,等.基于RISC-V VLIW架构的混合指令调度算法[J/OL].软件学报,1-17[2025-06-24].
[3] 李传东,衣然,罗英伟,等.RISC-V架构下的懒惰影子页表模型[J/OL].软件学报,1-15[2025-06-24].
[4] 厉冉,何梓豪,金笑光,等.基于RISC-V架构的智能生鲜仓库环境监控系统设计[J].仪表技术,2025,(03):1-4+9.
[5] 许霁航,罗敏涛,赵翠华,等.基于RISC-V架构的系统级抗单粒子翻转加固设计[J/OL].微电子学与计算机,1-9[2025-06-24].
[6] 刘筝.基于RISC-V与LooghArch的多架构融合策略[C]//中国自动化学会.2024中国自动化大会论文集.西安电子科技大学;,2024:571-574.
[7] 蒲清涛,仵杰.基于RISC-V架构MCU的永磁同步电机控制系统设计[J].电子制作,2024,32(21):18-22+27.
[8] 张心怡.RISC-V一定能成为AI时代的原生计算架构[N].中国电子报,2024-08-02(007).