Communications of the ACM
Single-ISA Heterogeneous Multi-Core Architectures: The Potential for Processor Power Reduction
Proceedings of the 36th annual IEEE/ACM International Symposium on Microarchitecture
Factored operating systems (fos): the case for a scalable operating system for multicores
ACM SIGOPS Operating Systems Review
Somniloquy: augmenting network interfaces to reduce PC energy usage
NSDI'09 Proceedings of the 6th USENIX symposium on Networked systems design and implementation
The multikernel: a new OS architecture for scalable multicore systems
Proceedings of the ACM SIGOPS 22nd symposium on Operating systems principles
Helios: heterogeneous multiprocessing with satellite kernels
Proceedings of the ACM SIGOPS 22nd symposium on Operating systems principles
Corey: an operating system for many cores
OSDI'08 Proceedings of the 8th USENIX conference on Operating systems design and implementation
LittleRock: Enabling Energy-Efficient Continuous Sensing on Mobile Phones
IEEE Pervasive Computing
Reflex: using low-power processors in smartphones without knowing them
ASPLOS XVII Proceedings of the seventeenth international conference on Architectural Support for Programming Languages and Operating Systems
Full-system analysis and characterization of interactive smartphone applications
IISWC '11 Proceedings of the 2011 IEEE International Symposium on Workload Characterization
Exploiting processor heterogeneity for energy efficient context inference on mobile phones
Proceedings of the Workshop on Power-Aware Computing and Systems
K2: a mobile operating system for heterogeneous coherence domains
Proceedings of the 19th international conference on Architectural support for programming languages and operating systems
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Modern smartphones are embracing asymmetric, loosely coupled processors that have drastically different performance-power tradeoffs. To exploit such architecture for energy proportionality, both application and OS workloads need to be distributed. We propose Kage, a combination of runtime and OS support, to replicate application execution and OS functions over asymmetric processors. Kage selectively creates replicas of application and OS services and maintains state consistency for them with low overhead. By doing so, it is able to reduce processor energy consumption of light-loaded smartphones manyfold. While enabling energy-proportionality, Kage simplifies application programming by providing the illusion of a single system image and per-process address spaces.