| 嵌入式系统超标量体系CPU的高效软件优化技术 |
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| 引用本文： | 张云.嵌入式系统超标量体系CPU的高效软件优化技术[J].单片机与嵌入式系统应用,2012,12(3):16-18. |
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| 作者姓名： | 张云 |
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| 作者单位： | 国电南京自动化股份有限公司,南京,211100 |
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| 摘 要： | 阐述实际电力自动化装置开发过程中如何提升嵌入式系统CPU运行效率,进行软件效率优化。虽然现代超标量体系结构的CPU标称性能很强大,但需要采取有针对性的措施进行优化,才能发挥其真正性能。在实践中,根据超标量体系结构CPU的特点,有针对性的进行软件优化和代码重构,优化前后性能有大幅度的提升。这说明CPU体系结构特定的软件优化对发挥系统性能有着至关重要的影响。
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| 关 键 词： | 超标量体系结构 流水线 指令并行 缓存 软件优化 |
Advanced Software Optimization Technology of Superscalar CPU in Embedded System |
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| Zhang Yun.Advanced Software Optimization Technology of Superscalar CPU in Embedded System[J].Microcontrollers & Embedded Systems,2012,12(3):16-18. |
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| Authors: | Zhang Yun |
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| Affiliation: | Zhang Yun(Guodian Nanjing Automation Co.,Ltd.,Nanjing 211100,China) |
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| Abstract: | The paper describes how to enhance the efficiency of embedded system＇s CPU in actual electric automation equipment development process,and optimizes the efficiency of software.Although the modern superscalar CPU＇s nominal performance is powerful,the CPU needs to be optimized with some target measure to play its actual performance.In practice,the design depends on the features of modern superscalar CPU to optimize the software and refactor codes with target.Before and after optimization,the performance has significantly improvement.The result shows that with the target of optimizing the CPU construction software,it can play a critical role in the system. |
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| Keywords: | superscalar stream line instruction parallel Cache software optimization |
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