Application Transformations for Energy and Performance-Aware Device Management

Energy conservation without performance degradation is an important goal for battery-operated computers, such as laptops and hand-held assistants. In this paper we determine the potential benefits of application-supported device management for optimizing energy and performance. In particular, we consider application transformations that increase device idle times and inform the operating system about the length of each upcoming period of idleness. We assess the potential energy and performance benefits of this type of application support for a laptop disk. Furthermore, we propose and evaluate a compiler framework for performing the transformations automatically for a disk device. Our experimental results demonstrate that unless applications are transformed, they cannot accrue any of the predicted benefits. In addition, they show that our compiler can produce almost the same performance and energy results that we obtain by handmodifyingapplications. Overall, we find that the transf...

• Type: Conference
• Year: 2002
• Where: IEEEPACT
• Authors: Taliver Heath, Eduardo Pinheiro, Jerry Hom, Ulrich Kremer, Ricardo Bianchini
• Keywords: Application-supported Device Management, Device Idle Times, Distributed And Parallel Computing, IEEEPACT 2002, Performance Degradation