Reactive speed control in temperature-constrained real-time systems
Shengquan Wang; Bettati, R.
Real-Time Systems, 2006. 18th Euromicro Conference on
Volume , Issue , 0-0 0 Page(s):10 pp. - 170
Digital Object Identifier   10.1109/ECRTS.2006.20
Summary:In this paper, we study temperature-constrained real-time systems, where real-time guarantees must be met without exceeding safe temperature levels within the processor. We give a short review on temperature issues in processors and describe how speed control can be used to trade-off task delays against processor temperature. In this paper, we describe how traditional worst-case execution scenarios do not apply in temperature-constrained situations. As example, we adopt a simple reactive speed control technique. We show how this simple reactive scheme can improve the processor utilization compared with any constant-speed scheme

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