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Performance Analysis Based System Level Power Management

  • US 20080301474A1
  • Filed: 12/21/2006
  • Published: 12/04/2008
  • Est. Priority Date: 12/23/2005
  • Status: Abandoned Application
First Claim
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1. A method of dynamic adaptive power management in multiprocessor system-on-chip comprising:

  • building a resource requirements table that tabulates tasks in an application program according to their performance requirements and resource power levels available in a multiprocessor system with power management controls, also the various operating voltages of the different cores and also the current running voltage level of the cores;

    during a static phase, uploading resource requirements to said table;

    during a dynamic phase, collecting information from a plurality of strategically placed performance counters, extracting dynamic performance requirements, and updating corresponding entries in said table;

    consulting said table and using a power manager to set corresponding power levels to system resources scheduled for respective tasks.

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