Inter-program optimizations for conserving disk energy

Previous work has shown that intra-program optimizations, i.e., optimizations performed on individual programs in isolation, can be very effective in reducing disk energy in streaming applications. This paper investigates the potential additional benefits of inter-program optimizations where sets of programs are optimized together. Experimental results on different subsets of three streaming applications show that 7–49% additional energy savings (27.3% on average) can be obtained with negligible performance penalties using two novel inter-program optimizations, namely execution context sensitive buffer size selection and inverse barrier synchronization. These figures were obtained via physical measurements on two laptop disks. Categories and Subject Descriptors: D.3.3 [Frameworks]: Programming Languages—language constructs and features General Terms: Design, Measurement

• Type: Conference
• Year: 2005
• Where: ISLPED
• Authors: Jerry Hom, Ulrich Kremer
• Keywords: Inter-program Optimizations, Intra-program Optimizations, ISLPED 2005, Potential Additional Benefits