Csr: Medium: Collaborative Research: Architecture and System Support for Power-agile Computing

نویسندگان

  • Geoffrey Challen
  • Mark Hempstead
چکیده

As energy management on energy-constrained devices continues to challenge researchers and frustrate users, device designs are addressing the problem by integrating more hardware components that can trade off energy and performance. Dynamic voltage-and-frequency scaling (DVFS) allows CPUs and memory to trade off speed and energy, buffering and polling rates allow radios to trade off latency and energy, and screen refresh rates allow displays to trade off quality and energy. And as the Dark Silicon utilization wall forces systems to choose what parts of the CPU to operate, the already-large configuration space will explode. This proposal refers to the emerging class of devices integrating multiple energy-proportional components as power-agile, reflecting their potential ability to adaptively reallocate energy usage between components to improve performance and save energy. But as energy-management features proliferate, new interfaces enabling coordination between applications, the operating system (OS), and hardware are urgently needed to realize the potential energy and performance benefits.

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تاریخ انتشار 2015