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[Blueprint idle-injector-hotplug-research] Research idle cycle injection versus hotplug

 

Blueprint changed by Mounir Bsaibes:

Whiteboard changed:
  Work items for 2011.07:
  [mturquette] design cpuoffline framework: DONE
  [mturquette] separate hotplug policy implementation from TI's cpufreq-hotplug governor: DONE
  [mturquette] implement cpuoffline framework: DONE
  [mturquette] implement OMAP4 support for cpuoffline framework: DONE
  [mturquette] implement avg-load governor for cpuoffline framework: DONE
  [mturquette] post cpuoffline patches to linux-pm list: DONE
  
  Work items for 2011.08:
  [mturquette] integrate review comments from list: DONE
  [mturquette] Publish git tree with cpuoffline framework patches for integration: DONE
  [mturquette] define relevant measurements to compare across implementations: DONE
  [mturquette] forward port idle cycle injector patches to linaro-2.6.39: BLOCKED
  [vincent-guittot] analyze power savings with and without CPUoffline support: DONE
  [mturquette] compare "raw" SMP CPUidle on Panda with the separated hotplug policy; publish the results for further discussion: INPROGRESS
  
- Work items:
+ These items will not be done as Mike is moving to handle common clk framework.
  [vincent-guittot] implement Ux500 support for CPUoffline: TODO
  [amitdanielk] implement Samsung support for CPUoffline: TODO
  [amitdanielk] analyze power savings with and without CPUoffline support: TODO
  
  Idle injector info:
  http://lwn.net/Articles/383368/
  http://thread.gmane.org/gmane.linux.kernel/973551
  
  Comparative analysis on SMP CPUidle versus SMP CPUidle + hotplug:
  Compare power savings on VDD_MPU using some benchmarks
  Compare power savings on ~VBAT using some benchmarks

-- 
Research idle cycle injection versus hotplug
https://blueprints.launchpad.net/linaro-pm-wg/+spec/idle-injector-hotplug-research