Conference Paper

Delay Analysis in Temperature-Constrained Hard Real-Time Systems with General Task Arrivals.

Michigan Univ., Dearborn, MI
DOI: 10.1109/RTSS.2006.16 Conference: Proceedings of the 27th IEEE Real-Time Systems Symposium (RTSS 2006), 5-8 December 2006, Rio de Janeiro, Brazil
Source: DBLP

ABSTRACT In this paper, we study temperature-constrained hard real- time systems, where real-time guarantees must be met with- out exceeding safe temperature levels within the proces- sor. Dynamic speed scaling is one of the major techniques to manage power so as to maintain safe temperature lev- els. As example, we adopt a simple reactive speed con- trol technique in our work. We design a methodology to perform delay analysis for general task arrivals under re- active speed control with First-In-First-Out (FIFO) sche- duling and Static-Priority (SP) scheduling. As a special case, we obtain a close-form delay formula for the leaky- bucket task arrival model. Our data show how simple reac- tive speed control can decrease the delay of tasks compared with any constant-speed scheme.

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