The Linux Kernel
5.3.0-rc4
  • The Linux kernel user’s and administrator’s guide
    • Linux kernel release 5.x <http://kernel.org/>
    • The kernel’s command-line parameters
    • Linux allocated devices (4.x+ version)
    • Documentation for /proc/sys
    • Hardware vulnerabilities
    • Reporting bugs
    • Security bugs
    • Bug hunting
    • Bisecting a bug
    • Tainted kernels
    • Ramoops oops/panic logger
    • Dynamic debug
    • Explaining the dreaded “No init found.” boot hang message
    • Documentation for Kdump - The kexec-based Crash Dumping Solution
    • Performance monitor support
    • Rules on how to access information in sysfs
    • Using the initial RAM disk (initrd)
    • Control Group v2
    • Control Groups version 1
    • Linux Serial Console
    • Linux Braille Console
    • Parport
    • RAID arrays
    • Kernel module signing facility
    • RapidIO Subsystem Guide
    • Linux Magic System Request Key Hacks
    • Unicode support
    • Software cursor for VGA
    • Kernel Support for miscellaneous (your favourite) Binary Formats v1.1
    • Mono(tm) Binary Kernel Support for Linux
    • Java(tm) Binary Kernel Support for Linux v1.03
    • Reliability, Availability and Serviceability
    • A block layer cache (bcache)
    • The Linux RapidIO Subsystem
    • ext4 General Information
    • The Android binderfs Filesystem
    • The SGI XFS Filesystem
    • Power Management
      • Power Management Strategies
      • System-Wide Power Management
      • Working-State Power Management
        • CPU Idle Time Management
        • CPU Performance Scaling
        • intel_pstate CPU Performance Scaling Driver
        • Intel Performance and Energy Bias Hint
    • Thunderbolt
    • Linux Security Module Usage
    • Memory Management
    • Namespaces
    • Perf Events and tool security
    • ACPI Support
    • ATA over Ethernet (AoE)
    • btmrvl driver
    • Clearing WARN_ONCE
    • CPU load
    • How CPU topology info is exported via sysfs
    • Device Mapper
    • The EFI Boot Stub
    • gpio
    • Notes on the change from 16-bit UIDs to 32-bit UIDs
    • Linux support for random number generator in i8xx chipsets
    • I/O statistics fields
    • Reducing OS jitter due to per-cpu kthreads
    • Laptop Drivers
    • Parallel port LCD/Keypad Panel support
    • LDM - Logical Disk Manager (Dynamic Disks)
    • Softlockup detector and hardlockup detector (aka nmi_watchdog)
    • Numa policy hit/miss statistics
    • Linux Plug and Play Documentation
    • Real Time Clock (RTC) Drivers for Linux
    • Video Mode Selection Support 2.13
    • Video Output Switcher Control
  • Kernel Build System
  • The Linux kernel firmware guide
  • The Linux kernel user-space API guide
  • IOCTLs
  • Working with the kernel development community
  • Development tools for the kernel
  • How to write kernel documentation
  • Kernel Hacking Guides
  • Linux Tracing Technologies
  • Kernel Maintainer Handbook
  • fault-injection
  • Kernel Livepatching
  • The Linux driver implementer’s API guide
  • Core API Documentation
  • locking
  • Accounting
  • Block
  • cdrom
  • Integrated Drive Electronics (IDE)
  • Frame Buffer
  • fpga
  • Human Interface Devices (HID)
  • Industrial I/O
  • InfiniBand
  • LEDs
  • Linux Media Subsystem Documentation
  • NetLabel
  • Linux Networking Documentation
  • pcmcia
  • Power Management
  • TCM Virtual Device
  • timers
  • Linux Watchdog Support
  • The Linux Input Documentation
  • Linux Hardware Monitoring
  • Linux GPU Driver Developer’s Guide
  • Security Documentation
  • Linux Sound Subsystem Documentation
  • Linux Kernel Crypto API
  • Filesystems in the Linux kernel
  • Linux Memory Management Documentation
  • BPF Documentation
  • USB support
  • Linux PCI Bus Subsystem
  • Assorted Miscellaneous Devices Documentation
  • Intel Many Integrated Core (MIC) architecture
  • Linux Scheduler
  • SuperH Interfaces Guide
  • ARM Architecture
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  • ext4 Data Structures and Algorithms
  • Translations
The Linux Kernel
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  • The Linux kernel user’s and administrator’s guide »
  • Power Management »
  • Working-State Power Management
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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
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