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실시간 서버 시스템에서 우선 순위 반전현상을 감소하기 위한 모델
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  • 실시간 서버 시스템에서 우선 순위 반전현상을 감소하기 위한 모델
  • A Model for Reducing Priority Inversion in Real Time Server System
저자명
최대수,임종규,구용완,Choe. Dae-Su,Im. Jong-Gyu,Gu. Yong-Wan
간행물명
정보처리논문지
권/호정보
1999년|6권 11호|pp.3131-3139 (9 pages)
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한국정보처리학회
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

Satisfying the rigid timing requirements of various real-time activities in real-time systems often requires some special methods to tune the systems run-time behaviors. Unbounded blocking can be caused when a high priority activity cannot preempt a low priority activity. In such situation, it is said that a priority inversion has occurred. The priority inversion is one of the problems which may prevent threads from meeting the deadlines in the real-time systems. It is difficult to remove such priority inversion problems in the kernel at the same time to bound the worst case blocking time for the threads. A thread is a piece of executable code which has access to data and stack. In this paper, a new real-time systems. It is difficult to remove such priority inversion problems in the kernel at the same time to bound the worst case blocking time for the threads. A threads is a piece of executable code which has access to data and stack. In this paper, a new real-time server model, which minimizes the duration of priority inversion, is proposed to reduce the priority inversion problem. The proposed server model provides a framework for building a better server structure, which can not only minimize the duration of the priority inversion, but also reduce the deadline miss ratio of higher priority threads.