TY  - JOUR
T1  - Dynamic Voltage/Frequency Scaling for EDZL Scheduling in
Multicore Real-Time Systems
AU - Paik, Woojin AU - Han, Sangchul AU - Park, Minkyu 
JO  - Journal of Engineering and Applied Sciences
VL  - 14
IS  - 21
SP  - 8039
EP  - 8046
PY  - 2019
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2019.8039.8046
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2019.8039.8046
KW  - DVFS
KW  -EDZL
KW  -dynamic voltage/frequency scaling
KW  -scheduling
KW  -mobile real-time system
KW  -Multicore
AB  - Under heavy workload mobile real-time systems make full use of system resources to meet timing
constraints of tasks. Under light workload they need to reduce energy consumption due to limited system
resources and a limited power source. EDZL (Earliest Deadline until Zero Laxity), one of multiprocessor real-time
scheduling algorithms can enable higher system utilization than EDF (Earliest Deadline First) and its scheduling
overhead can be restricted. However, there is little work on reducing energy consumption in EDZL scheduling.
This study proposes a DVFS (Dynamic Voltage/Frequency Scaling) technique in EDZL scheduling. The
technique includes two algorithms: one that calculates a uniform speed on full-chip DVFS platforms and the
other that calculates task’s individual speed on per-core DVFS platforms. We present simulation results that
show our technique is simple but effective for reducing energy consumption in real-time scheduling.
ER  -