Energy management in mobile devices with the cinder operating system

  • Authors:

  • Arjun Roy;Stephen M. Rumble;Ryan Stutsman;Philip Levis;David Mazières;Nickolai Zeldovich

  • Affiliations:

  • Stanford University, Stanford, CA,USA;Stanford University, Stanford, CA, USA;Stanford University, Stanford, CA, USA;Stanford University, Stanford, CA, USA;Stanford University, Stanford, CA, USA;Massachusetts Institute of Technology, Cambridge, MA, USA

  • Venue:
  • Proceedings of the sixth conference on Computer systems
  • Year:
  • 2011

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Abstract

We argue that controlling energy allocation is an increasingly useful and important feature for operating systems, especially on mobile devices. We present two new low-level abstractions in the Cinder operating system, reserves and taps, which store and distribute energy for application use. We identify three key properties of control -- isolation, delegation, and subdivision -- and show how using these abstractions can achieve them. We also show how the architecture of the HiStar information-flow control kernel lends itself well to energy control. We prototype and evaluate Cinder on a popular smartphone, the Android G1.