Low-power task scheduling for multiple devices
CODES '00 Proceedings of the eighth international workshop on Hardware/software codesign
Quantitative comparison of power management algorithms
DATE '00 Proceedings of the conference on Design, automation and test in Europe
Operating-system directed power reduction
ISLPED '00 Proceedings of the 2000 international symposium on Low power electronics and design
Dynamic I/O power management for hard real-time systems
Proceedings of the ninth international symposium on Hardware/software codesign
The benefits of event: driven energy accounting in power-sensitive systems
EW 9 Proceedings of the 9th workshop on ACM SIGOPS European workshop: beyond the PC: new challenges for the operating system
Power-aware video decoding using real-time event handlers
WOWMOM '02 Proceedings of the 5th ACM international workshop on Wireless mobile multimedia
ECOSystem: managing energy as a first class operating system resource
Proceedings of the 10th international conference on Architectural support for programming languages and operating systems
Using Processor-Cache Affinity Information in Shared-Memory Multiprocessor Scheduling
IEEE Transactions on Parallel and Distributed Systems
The Case for Higher-Level Power Management
HOTOS '99 Proceedings of the The Seventh Workshop on Hot Topics in Operating 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)
Collaborative Operating System and Compiler Power Management for Real-Time Applications
RTAS '03 Proceedings of the The 9th IEEE Real-Time and Embedded Technology and Applications Symposium
VSV: L2-Miss-Driven Variable Supply-Voltage Scaling for Low Power
Proceedings of the 36th annual IEEE/ACM International Symposium on Microarchitecture
Energy-Aware Traffic Shaping for Wireless Real-Time Applications
RTAS '04 Proceedings of the 10th IEEE Real-Time and Embedded Technology and Applications Symposium
Cooperative I/O: a novel I/O semantics for energy-aware applications
OSDI '02 Proceedings of the 5th symposium on Operating systems design and implementationCopyright restrictions prevent ACM from being able to make the PDFs for this conference available for downloading
Currentcy: a unifying abstraction for expressing energy management policies
ATEC '03 Proceedings of the annual conference on USENIX Annual Technical Conference
Reducing system level power consumption for mobile and embedded platforms
ARCS'05 Proceedings of the 18th international conference on Architecture of Computing Systems conference on Systems Aspects in Organic and Pervasive Computing
Accurate on-line prediction of processor and memoryenergy usage under voltage scaling
EMSOFT '07 Proceedings of the 7th ACM & IEEE international conference on Embedded software
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Mobile and embedded platforms have experienced dramatic advances in capabilities, largely due to the development of associated peripheral devices for storage and communication. The incorporation of these I/O devices has increased the overall power envelope of these platforms. In fact, system-level power consumption of mobile platforms is often dominated by peripheral devices. Since battery technologies alone have been unable to provide the lifetimes required by many platforms, in order to conserve energy, most devices provide the ability to transition into low power states during idle periods. The resulting energy savings are heavily dependent upon the lengths and number of idle periods experienced by a device. This paper presents an infrastructure designed to take advantage of device low power states by increasing the burstiness of device accesses and idle periods to provide a reduced power profile, and thereby an improvement in battery life. Our approach combines compiler-based source modifications with operating system support to implement a dynamic solution for enhanced energy consumption. We evaluate our infrastructure on an XScale-based embedded platform with a Linux implementation.