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ÇѱÛÁ¦¸ñ(Korean Title) |
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¿µ¹®Á¦¸ñ(English Title) |
A WCRT Analysis for Design Space Exploration of Distributed Real-time Systems |
ÀúÀÚ(Author) |
ÇÏÈ¿Áø
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±èÁø¿ì
Çϼøȸ
Hyojin Ha
Yan Zheng
Jinwoo Kim
Soonhoi Ha
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¿ø¹®¼ö·Ïó(Citation) |
VOL 40 NO. 03 PP. 0149 ~ 0158 (2013. 06) |
Çѱ۳»¿ë (Korean Abstract) |
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¿µ¹®³»¿ë (English Abstract) |
Since worst-case response time (WCRT) is critical to the real-time system¡¯s safety, it is important to analyze the exact WCRT before its implementation. So, the design space exploration for distributed real-time system should include WCRT analysis and verify whether it meets the deadline even in WCRT or not. But existing WCRT analysis is not proper for design space exploration because it takes too long or over-estimates the WCRT. This paper presents a WCRT analysis using multi-objective genetic algorithm and shows its performance and characteristics. As a result, this analysis technique showed highly accurate results in relatively short time and achieved the trade-off between accuracy of analysis and analyzing time in existing WCRT analysis. It also has good scalability, when compared with other highly accurate analysis techniques. In addition, the proposed WCRT analysis provides near-worst-case scenarios as a byproduct of the genetic algorithm, which will be useful in design space exploration. |
Å°¿öµå(Keyword) |
ÃÖ¾Ç ¼º´É ¿¹Ãø
À¯Àü ¾Ë°í¸®Áò
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½ºÄÉÁÙ¸µ ¾î³ë¸»¸®
worst-case performance estimation
genetic algorithm
distributed real-time system
scheduling anomaly
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