淡江大學機構典藏:Item 987654321/96128
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    題名: Efficient Exact Test for Rate-Monotonic Schedulability Using Large Period-Dependent Initial Values
    作者: Lu, Wan-Chen;Lin, Kwei-Jay;Wei, Hsin-Wen;Shih, Wei-Kuan
    貢獻者: 淡江大學電機工程學系
    關鍵詞: Real-time systems;periodic tasks;fixed-priority preemptive scheduling;schedulability analysis
    日期: 2008-05
    上傳時間: 2014-03-03 16:31:26 (UTC+8)
    摘要: Real-time systems using rate-monotonic fixed priority scheduling can be checked for schedulability either by sufficient but pessimistic schedulability conditions or by exact testing. Exact testing provides a more precise result but may not be performed in polynomial time. Audsley et al. proposed one of the earliest methods by iteratively deriving the response times of jobs. Other researchers have improved the exact test method by using different initial values for testing. In this paper, we propose new initial values of p, - p, , and f in a task set of i tasks, where p, is the period of task Tl. We show that the new initial values can significantly improve the efficiency of exact testing. These period-dependent initial values can also be used for the schedulability test of multiframe task models and effectively reduce the number of iterations for testing.
    關聯: IEEE Transactions on Computers 57(5), pp.648-659
    DOI: 10.1109/TC.2007.70820
    顯示於類別:[電機工程學系暨研究所] 期刊論文

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