linaro-pm-wg team mailing list archive

[Amit Kucheria <amit.kucheria@xxxxxxxxxxxxx>]

Blueprint changed by Amit Kucheria:

Whiteboard changed:
  [amitk: 2/11/2010]
   * At LDS, it was decided to implement the functionality to allow hotpluging of cores, but leave the question of when to do it to policy
   * If possible, common code will be identified and the implementations refactored
  
  [vingu: 19/11/2010 - 09/12/2010]
  
  link to the wiki page :
  https://wiki.linaro.org/WorkingGroups/PowerManagement/Doc/Hotplug
  
  Regarding blocked item:
   *cpu hotplug trace events patch is under review
   *cpu hotplug plugin for pytimechart will be submitted only when a trace event patch will be accepted
  
  Status:
  In progress
  
  Work Items:
  [vincent-guittot] Make a status of the hotplug feature on a CA9 based SoC (MOP U8500) : DONE
  [vincent-guittot] Implement patch for a functional hotplug feature on MOP U8500 if necessary : DONE
  [vincent-guittot] Check/Split common and SoC specific code : DONE
  [vincent-guittot] Push a patch to the linux-arm-kernel  if necessary : DONE
  [vincent-guittot] Add some traces events if necessary : BLOCKED
  [vincent-guittot] Define some hotplug latency measurement test cases : DONE
  [lnxtorez] Integrate Vincent's hotplug tests in testing infrastructure : DONE
  [vincent-guittot] Perform hotplug latency measurements on ST-E MOP U8500 : DONE
  [vincent-guittot] Identify/study high latency root cause : DONE
  [vincent-guittot] study for high latency solution : DONE
  [vincent-guittot] Define hotplug retention measurement test cases : DONE
  [vincent-guittot] Perform hotplug retention measurements on MOP U8500 : DONE
  [vincent-guittot] Add a cpu hotplug plugin to pytimechart : BLOCKED
- [vincent-guittot] Compute results and define a hotplug usage policy : POSTPONED
- [vincent-guittot] Test the hotplug policy with some stress cases : POSTPONED
  [vishwanath-bs] Perform hotplug latency measurements on TI OMAP4 : DONE
  [amitdanielk] Perform hotplug latency measurements on Samsung Orion : DONE
- [vishwanath-bs] Perform hotplug retention measurements on OMAP4 : POSTPONED
- [amitdanielk] Perform hotplug retention measurements on Orion : POSTPONED
  [vincent-guittot] Check Mike Turquette's patch for cpufreq governor-based hotplugging: DONE
+ 
+ 
+ Work items for backlog:
  [amitk] Review the latency test cases : POSTPONED
  [amitk] Review the interesting test usecases : POSTPONED
  [sjahnke] Drive towards a solution for hotplug usage policy : POSTPONED
+ [vincent-guittot] Compute results and define a hotplug usage policy : POSTPONED
+ [vincent-guittot] Test the hotplug policy with some stress cases : POSTPONED
+ [amitdanielk] Perform hotplug retention measurements on Orion : POSTPONED

-- 
Add support for cpu hotplug on ARM
https://blueprints.launchpad.net/linaro-pm-wg/+spec/multi-core-cpu-hotplug