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嵌入式实时操作系统中对时钟中断服务程序的改进 被引量:1

Improvement of Timer Interrupt Service Routine in RTOS
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摘要 在一般的嵌入式实时操作系统中,时钟中断服务程序在每个时钟节拍工作。在实际应用中,并不是每个时钟节拍都有任务调度,所以有很多时钟中断服务程序的工作是多余的,浪费了CPU资源。为了提高性能,文章提出了一种方法来改变这种情况。 In most RTOS, the timer interrupt service routine(ISR) executes at every time tick. In most practical application, context switch doesn't happen at some time tick , so sometime the execution of timer ISR is useless and wastes CPU time. In this paper, a new method is proposed to prevent useless execution of the timer ISR.
作者 屠征 谢康林
出处 《计算机工程》 CAS CSCD 北大核心 2003年第6期79-81,共3页 Computer Engineering
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参考文献5

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同被引文献4

  • 1蔡林骥,李清宝.RTX51嵌入式实时操作系统分析[J].计算机应用与软件,2005,22(6):90-92. 被引量:4
  • 2William Stallings.Operating systems:Internals and design principles[M].4th ed.America:Prentice Hall,2004.
  • 3Labrosse J.MicroC/OS-Ⅱ:The Real-Time Kernel,R&D Books[M].CMP Books,1998.
  • 4Rick L Ehrbaum.Using Linux in Embedded and Real-time Systems[EB/OL].http://www.linuxdevices.com/.

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