Low-power task scheduling for multiple devices
CODES '00 Proceedings of the eighth international workshop on Hardware/software codesign
OM '01 Proceedings of the 2001 ACM SIGPLAN workshop on Optimization of middleware and distributed systems
Real-time dynamic voltage scaling for low-power embedded operating systems
SOSP '01 Proceedings of the eighteenth ACM symposium on Operating systems principles
Power-aware operating systems for interactive systems
IEEE Transactions on Very Large Scale Integration (VLSI) Systems
Experiences in Implementing an Energy-Driven Task Scheduler in RT-Linux
RTAS '02 Proceedings of the Eighth IEEE Real-Time and Embedded Technology and Applications Symposium (RTAS'02)
Performance Comparison of Dynamic Voltage Scaling Algorithms for Hard Real-Time Systems
RTAS '02 Proceedings of the Eighth IEEE Real-Time and Embedded Technology and Applications Symposium (RTAS'02)
Best-Case Response Times and Jitter Analysis of Real-Time Tasks
Journal of Scheduling
Power-Aware Scheduling for Periodic Real-Time Tasks
IEEE Transactions on Computers
Leakage aware dynamic voltage scaling for real-time embedded systems
Proceedings of the 41st annual Design Automation Conference
Dynamic voltage scaling for systemwide energy minimization in real-time embedded systems
Proceedings of the 2004 international symposium on Low power electronics and design
Dynamic voltage scheduling with buffers in low-power multimedia applications
ACM Transactions on Embedded Computing Systems (TECS)
On-Line Dynamic Voltage Scaling for Hard Real-Time Systems Using the EDF Algorithm
RTSS '04 Proceedings of the 25th IEEE International Real-Time Systems Symposium
IPDPS '05 Proceedings of the 19th IEEE International Parallel and Distributed Processing Symposium (IPDPS'05) - Papers - Volume 01
Dynamic slack reclamation with procrastination scheduling in real-time embedded systems
Proceedings of the 42nd annual Design Automation Conference
System-level energy-efficient dynamic task scheduling
Proceedings of the 42nd annual Design Automation Conference
The low power energy aware processing (LEAP)embedded networked sensor system
Proceedings of the 5th international conference on Information processing in sensor networks
MPSoC ECG biochip: a multiprocessor system-on-chip for real-time human heart monitoring and analysis
Proceedings of the 3rd conference on Computing frontiers
Online energy-aware I/O device scheduling for hard real-time systems
Proceedings of the conference on Design, automation and test in Europe: Proceedings
Real-time system for monitoring driver vigilance
IEEE Transactions on Intelligent Transportation Systems
Energy-conscious, deterministic I/O device scheduling in hard real-time systems
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
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The I/O subsystem has become a major source of energy consumption in a hard real-time monitoring and control system. To reduce its energy consumption without missing deadlines, a dynamic power management (DPM) policy must carefully consider the power parameters of a device, such as its break-even time and wake-up latency, when switching off idle devices. This problem becomes extremely complicated when dynamic voltage scaling (DVS) is applied to change the execution time of a task. In this paper, we present COLORS, a composite low-power scheduling framework that includes DVS in a DPM policy to maximize the energy reduction on the I/O subsystem. COLORS dynamically predicts the earliest-access time of a device and switches off idle devices. It makes use of both static and dynamic slack time to extend the execution time of a task by DVS, in order to create additional switch-off opportunities. Task workloads, processor profiles, and device characteristics all impact the performance of a low-power real-time algorithm. We also identify a key metric that primarily determines its performance. The experimental results show that, compared with previous work, COLORS achieves additional energy reduction up to 20%, due to the efficient utilization of slack time.