Go Green - Save Power

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Slides of the session presented at foss.in 2009,Bangalore(http://foss.in/2009/schedules/talkdetailspub.php?talkid=66)

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Go Green - Save Power

  1. 1. Go Green – Save Power By Rajesh Sola NBKRIST,Vidyanagar Dec 2nd,FOSS.IN,Bangalore
  2. 2. Green Computing ● Global warming ● Some facts ● Power Optimization ● Some solutions
  3. 3. PowerTop ● Free and open source tool from lesswatts.org ● Getting a copy ● Features ● CPU utilization details ● Show causes for more power consumption ● Tips for optimal tuning
  4. 4. What PowerTop Can do ● A Small Demo ● C State Information ● Wakeups per second ● Power usage ● Top causes for wakeups ● Suggestions
  5. 5. Contribute ● Working on bugs http://bugzilla.lesswatts.org/ ● New Suggestions ● UI Enhancement
  6. 6. UI Enhancement ● Ncurses based original UI ● Qt based UI under development - qpowertop ● Demo
  7. 7. Qt – A Quick Tour ● Qt Widgets ● Signals & Slots ● Working with Qt creator
  8. 8. Code Changes ● C++ coding ● Replacing ncurses calls with qt slots ● Polling, Refresh ● Main changes in ● powertop.* display.*
  9. 9. TODO - Split View - Action on suggestions - Colour Highlighting - Pictorial Representations - Panel Notifications - Other Optimizations - Profiling - Documentation & Coding Standards
  10. 10. Further Scope - KDE App - Plasmoid
  11. 11. Links ● http://www.lesswatts.org/projects/powertop/ ● http://code.google.com/p/qpowertop ● Getting the code svn co http://qpowertop.googlecode.com/svn/trunk/ qpowertop ● IRC – #lesswatts, #powertop on irc.oftc.net – #qt , #kde-in on irc.freenode.net
  12. 12. Thank You Email:- rajesh@lisor.org IRC Nick :- sola (freenode server)

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