Collaborative energy debugging for mobile devices

  • Authors:
  • Adam J. Oliner;Anand Iyer;Eemil Lagerspetz;Sasu Tarkoma;Ion Stoica

  • Affiliations:
  • AMP Lab, UC Berkeley;AMP Lab, UC Berkeley;U of Helsinki;U of Helsinki;AMP Lab, UC Berkeley

  • Venue:
  • HotDep'12 Proceedings of the Eighth USENIX conference on Hot Topics in System Dependability
  • Year:
  • 2012

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Abstract

We aim to detect and diagnose code misbehavior that wastes energy, which we call energy bugs. This paper describes a method and implementation, called Carat, for performing such diagnosis on mobile devices. Carat takes a collaborative, black-box approach. A non-invasive client app sends intermittent, coarse-grained measurements to a server, which identifies correlations between higher expected energy use and client properties like the running apps, device model, and operating system. Carat successfully detected all energy bugs in a controlled experiment and, during a deployment to 883 users, identified 5434 instances of apps exhibiting buggy behavior in the wild.