| 基于APIC时钟的嵌入式Linux内核实时化研究 |
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| 引用本文： | 侯峰,童晓阳. 基于APIC时钟的嵌入式Linux内核实时化研究[J]. 现代电子技术, 2010, 33(14): 193-195 |
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| 作者姓名： | 侯峰 童晓阳 |
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| 作者单位： | 西南交通大学,电气工程学院,四川,成都,610031 |
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| 摘 要： | 在分析目前Linux的各种实时化方法的基础上,提出了基于APIC时钟修改的方法,以获得更高的硬实时性能。对APIC中断函数进行修改,将APIC中断和8254中断排序,使得硬实时中断的优先级大于普通8254中断,从而获得了更高的实时性能。多组仿真实验验证了该方法的有效性。
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| 关 键 词： | 嵌入式系统 实时化改造 Linux APIC |
Real-time Improvement for Embedded Linux Based on APIC Clock |
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| HOU Feng,TONG Xiao-yang. Real-time Improvement for Embedded Linux Based on APIC Clock[J]. Modern Electronic Technique, 2010, 33(14): 193-195 |
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| Authors: | HOU Feng TONG Xiao-yang |
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| Affiliation: | (School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China) |
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| Abstract: | The method based on APIC （high-quality programmable controller）clock modification is proposed to obtain more hard real-time performance by analyzing the present method of real-time Linux. To modify the interrupt function of A- PIC, and sort the APIC interrupt and 8254 interrupt, the priority of the hard real-time is higher than the normal8254 interrupt, a better real-time performance is gained. Multiple sets of simulation results verify the effectiveness of the method. |
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| Keywords: | Linux APIC |
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