Linux Plumbers Conf 2014

One Line Summary

Abstract

The scheduler, by virtue of being in charge of placing tasks on various cpus, is ultimately responsible for the power state of these cpus.

While we have some benchmarks to measure scheduling performance, they focus on maximising throughput. There are currently no tools to help maintainers judge if a patch(set) improves or regresses energy consumption for a workload. This talk will introduce a new tool that can help with this – idlestat.

The goal of the talk is to get more ideas from the community on making idlestat more useful with a view to getting it merged in the kernel.

Tags

tools, power, energy, scheduler

Presentation Materials

Speaker

• Amit Kucheria

  Linaro
  • Favorites: View Amit's favorites

  Biography

  Amit is a Technical Lead for Power Management at Linaro. In this role, he’s getting an opportunity to make Linux power management somewhat architecture-agnostic. His previous jobs included stints at Canonical as an ARM kernel engineer and working on Power management for Nokia’s Maemo-based internet tablets. Prior to that he worked on a US defense contract that made him fall in love with the phrase “mobile self-healing wireless networks”.

  Amit loves new cultural experiences resulting from his love for travel.

  Sessions

  • * Tools to analyse scheduling and energy efficiency
    • Title: Tools to analyse scheduling and energy efficiency
    • Microconference: Energy-aware Scheduling and CPU Power Management
    • Time: 9:00am
    • One Line Summary:

      Improving scheduler regression testing with a focus on energy efficiency

    • slides
    • Speakers: Amit Kucheria