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The proliferation of Internet of Things (IoT) and the success of rich cloud services have pushed the horizon of a new computing paradigm, edge computing, which calls for processing the data at the edge of the network. Edge computing has the potential to address the concerns of response time requirement, battery life constraint, bandwidth cost saving, as(More)
Increasing the capacity of existing battery technologies could play an important role in today’s mobile society. To improve the reliability and efficiency of modern portable power sources, it is critical to not only manage the hardware and software relying on the power, but also the discharging of the battery cells. In this work, we propose an alternate(More)
Heterogeneous multi-core platforms, e.g., ARM's big.LITTLE, are a promising trend to improve the performance and energy efficiency of future mobile systems. However, the immediate benefits and the challenges to take advantage of the heterogeneity are still not clear. In this paper, we present our early experiences about the energy efficiency of the two(More)
Mobile devices, such as smart phones and tablets, have become an integral part of our daily life, providing a lot of fancy and powerful applications. To understand and solve the battery drain problem, we design and implement the Bugu service which targets the applications running on mobile devices, analyzes event-power relationship, and provides users an(More)
Resolving excessive power dissipation of modern computer systems has become a substantial challenge. However, few research projects have targeted on application power analysis or application-aware power management, which becomes a rising factor in energy efficient system design. In this paper, we describe and implement an application function (subroutine(More)
For mobile devices, battery energy is the most precious resource. In the last decade, researchers have proposed various energy saving strategies from the system level to the hardware component level. In this paper, we explore how close to one week a smart phone running off of a single battery can last under normal usage. We first developed a battery(More)
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