Working-State Power Management

• CPU Idle Time Management
  • Concepts
  • The Idle Loop
  • Idle CPUs and The Scheduler Tick
  • The menu Governor
  • The Timer Events Oriented (TEO) Governor
  • Representation of Idle States
  • Power Management Quality of Service for CPUs
  • Idle States Control Via Kernel Command Line
• CPU Performance Scaling
  • The Concept of CPU Performance Scaling
  • CPU Performance Scaling in Linux
  • CPUFreq Policy Objects
  • CPU Initialization
  • Policy Interface in sysfs
  • Generic Scaling Governors
  • Frequency Boost Support
  • References
• intel_pstate CPU Performance Scaling Driver
  • General Information
  • Operation Modes
  • Turbo P-states Support
  • Processor Support
  • User Space Interface in sysfs
  • intel_pstate vs acpi-cpufreq
  • Kernel Command Line Options for intel_pstate
  • Diagnostics and Tuning
  • References
• Intel Performance and Energy Bias Hint
  • Intel Performance and Energy Bias Attribute in sysfs