A Generic Parameter Layer for Linux Power Management CeLinux 2007

 Documents

 22 views
of 18

Please download to get full document.

View again

All materials on our website are shared by users. If you have any questions about copyright issues, please report us to resolve them. We are always happy to assist you.
Description
A Parameter based approach to Linux power management Matthew Locke and Eugeny Mints April, 2007 Agenda History Background Features/Goals Parameter framework API Key Internals Use Cases Issues         NomadGS History All started from Dynamic Power Management (DPM) framework introduced in 2001 by Montavista and IBM Community rejected DPM and it wasn’t pushed much further in the community In 2004, Todd Poynor (MV) submitted PowerOP which is the operating point layer from DPM. Not muc
Share
Tags
Transcript
  Matthew Locke and Eugeny Mints April, 2007 A Parameter based approachto Linux power management  NomadGS  Agenda  History  Background  Features/Goals  Parameter framework    API  Key Internals  Use Cases  Issues  NomadGS History   All started from Dynamic Power Management (DPM)framework introduced in 2001 by Montavista and IBM  Community rejected DPM and it wasn’t pushed much furtherin the community  In 2004, Todd Poynor (MV) submitted PowerOP which is theoperating point layer from DPM. Not much traction.  In 2006, Eugeny and myself (NomadGS) attempt to getPowerOP accepted by showing how it can be used on x86 aswell as embedded.  Becomes clear that the operating point concept won’t work for every platform and therefore the wrong base abstraction.  End of 2006, back to the drawing board.  NomadGS Operating Points  Operating Points - set of system wide parameters thatcontrol power consumption.  Parameters need to be set asa group for optimalpower/performance balance orhardware dependencies  Parameter values wereplatform specific - dividervalues not frequencies.  Operating framework (PowerOP) maintained a list of valid operating points.  Did not address local devicedriver power management.
Related Search
We Need Your Support
Thank you for visiting our website and your interest in our free products and services. We are nonprofit website to share and download documents. To the running of this website, we need your help to support us.

Thanks to everyone for your continued support.

No, Thanks