TY - GEN
T1 - Dynamic voltage and frequency scaling for optimal real-time scheduling on multiprocessors
AU - Funaoka, Kenji
AU - Takeda, Akira
AU - Kato, Shinpei
AU - Yamasaki, Nobuyuki
PY - 2008
Y1 - 2008
N2 - Not only system performance but also energy efficiency is critically important for embedded systems. Optimal real-time scheduling is effective to not only schedulability improvement but also energy efficiency for the systems. In this paper, real-time dynamic voltage and frequency scaling (RT-DVFS) techniques based on the theoretically optimal real-time static voltage and frequency scaling (RT-SVFS) techniques proposed in our previous work are presented for multiprocessor systems. Simulation results show that RT-DVFS covers up the disadvantages of RT-SVFS in the sense that RT-DVFS are not practically affected by the difference among systems, whereas the energy consumption of RT-SVFS highly depends on the selectable processor frequency especially in high system utilization.
AB - Not only system performance but also energy efficiency is critically important for embedded systems. Optimal real-time scheduling is effective to not only schedulability improvement but also energy efficiency for the systems. In this paper, real-time dynamic voltage and frequency scaling (RT-DVFS) techniques based on the theoretically optimal real-time static voltage and frequency scaling (RT-SVFS) techniques proposed in our previous work are presented for multiprocessor systems. Simulation results show that RT-DVFS covers up the disadvantages of RT-SVFS in the sense that RT-DVFS are not practically affected by the difference among systems, whereas the energy consumption of RT-SVFS highly depends on the selectable processor frequency especially in high system utilization.
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U2 - 10.1109/SIES.2008.4577677
DO - 10.1109/SIES.2008.4577677
M3 - Conference contribution
AN - SCOPUS:51549121323
SN - 9781424419951
T3 - SIES'2008 - 3rd International Symposium on Industrial Embedded Systems
SP - 27
EP - 33
BT - SIES'2008 - 3rd International Symposium on Industrial Embedded Systems
T2 - SIES'2008 - 3rd International Symposium on Industrial Embedded Systems
Y2 - 11 June 2008 through 13 June 2008
ER -
