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The Research and Practice of Real-Time Performance of Linux Kernel

Author: ZengXiaoLong
Tutor: DingZhenGuo;LiaoShuangQuan
School: Xi'an University of Electronic Science and Technology
Course: Software Engineering
Keywords: Real - time operating system Real-time Task scheduling Multi - grain clock
CLC: TP316.81
Type: Master's thesis
Year: 2007
Downloads: 131
Quote: 2
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Abstract


Domestic deficiencies in the development of real-time operating system , a comprehensive study of the real - time operating system , especially in the real-time operating system to do the in-depth analysis , using a variety of real-time method to improve the system , in many ways improve the real-time nature of the system . Priority-based preemption scheduling features for real-time operating system , proposed an improved multi- priority ready queue scheduling algorithm , the scheduling system in the case of strong load will still be able to ensure 0 ( 1) time complexity , good ensure stability and real-time scheduling . A configurable multi- granularity clock mechanism . The basis of user self- configuration clock granularity , using double-precision clock mechanism , the distinction between ordinary clock interrupt and high-precision clock interrupt , only to meet real - time demand, but also to reduce unnecessary overhead , better to solve the real-time performance and efficiency of the system the conflict between . Interrupt management , combined with the characteristics of the platform processors , the idea of a unified takeover processing system of external interrupt . By introducing the mechanism of dual stack solution could trigger a stack overflow interrupt nesting . Design a hard real-time operating system kernel , hoping to be able to play a certain role in promoting the development of real-time operating system .

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