Schedulability analysis in hard real-time systems under thermal constraints Academic Article

abstract

• In this paper, we study thermal-constrained hard real-time systems, where real-time guarantees must be met without exceeding safe temperature levels within the processor. Dynamic speed scaling is one of the major techniques to manage power so as to maintain safe temperature levels. As example, we adopt a reactive speed control technique in our work.We design an extended busy-period analysis methodology to perform schedulability analysis for general task arrivals under reactive speed control with First-In-First-Out (FIFO), Static-Priority (SP), and Earliest-Deadline-First (EDF) scheduling. As a special case, we obtain a closed-form formula for the worstcase response time of jobs under the leaky-bucket task arrival model. Our data show how reactive speed control can decrease the worst-case response time of tasks in comparison with any constant-speed scheme. Springer Science+Business Media, LLC 2010.

authors

• Bettati, Riccardo

published proceedings

• REAL-TIME SYSTEMS

author list (cited authors)

• Wang, S., Ahn, Y., & Bettati, R.

citation count

• 9

complete list of authors

• Wang, Shengquan||Ahn, Youngwoo||Bettati, Riccardo

publication date

• October 2010

publisher

• Springer Nature  Publisher

published in

• Real Time Systems: the international journal of time critical computing systems  Journal

keywords

• Dynamic Speed Scaling
• Real-time
• Schedulability Analysis
• Scheduling
• Thermal

Digital Object Identifier (DOI)

• 10.1007/s11241-010-9104-7

start page

• 160

end page

• 188

volume

• 46

issue

• 2

URL

• http://dx.doi.org/10.1007/s11241-010-9104-7