One Line Summary

Abstract

Running Android on systems with varying topologies and compute options (big.LITTLE for example) bears lot of challenges: apps execution predictability, energy/performance tradeoffs, etc. The introduction of per-task Quality of Service may help in solving some of these problems, as it can represent an interface between Android and the Linux scheduler for providing more information to the latter, while giving better runtime guarantees to the former. The basic idea has foundations on the use of the Linux kernel’s deadline scheduler, while the aim is to generate further discussion on the topic.

Tags

power, userspace, scheduler, QOS, bigLITTLE

Presentation Materials

Speaker

• Juri Lelli

  ARM Ltd.
  Biography

  Juri Lelli received a Bachelor’s degree in Computer Engineering at the
  University of Pisa (Italy) in 2006, and a Master’s degree in Computer
  Engineering at the University of Pisa (Italy) in 2010 with a thesis
  titled “Design and development of real-time scheduling mechanisms for
  multiprocessor systems”. He then earned a PhD degree at the Scuola
  Superiore Sant’Anna of Pisa, Italy (ReTiS Lab). His PhD thesis focused
  on reducing the gap between classical real-time theory and practical
  implementation of real-time scheduling algorithms on General Purpose
  Operating Systems, with a special focus on Linux. At the moment, he works
  at ARM Ltd., where he continues contributing to the Linux scheduler
  development.