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PowerSaver CPU Profile Manager

PowerSaver is a Bash script that manages CPU frequency and performance profiles for Linux systems using cpupower. It allows users to dynamically set CPU frequency limits and governors based on predefined user and CPU profiles, optimizing for performance or power savings.

Features

  • View CPU Info: Displays the CPU model, core count, and current frequency limits.
  • Predefined Profiles:
    • User Profiles: Fire, Work, Relax, Out of Office (OOO), Time Is Gold.
    • CPU Profiles: Max, Minus One GHz, Half, Min, Custom (frequency and unit).
  • Governors: Automatically sets powersave or performance governors for each profile.
  • Custom Limits: Supports custom frequency settings in MHz or GHz.

Requirements

  • cpupower: Ensure that cpupower is installed: 
    sudo apt install cpupower

Usage

./powersaver.sh [options]

Options:

  • --user-profile [ fire | work | relax | ooo | timeisgold ]

    • Fire: Max performance with high frequency and performance governor.
    • Work: High performance with moderate frequency and performance governor.
    • Relax: Moderate performance with lower power consumption.
    • OOO: Energy-saving profile with low frequency and powersave governor.
    • Time Is Gold: Minimal performance, powersave governor, and lowest frequency.

  • --cpu-profile [ max | minusgiga | half | min | custom [max_freq] [Mhz|GHz] ]

    • max: Set CPU to its maximum frequency.
    • minusgiga: Set CPU to one GHz below the maximum.
    • half: Set CPU to half of its maximum frequency.
    • min: Set CPU to its minimum frequency.
    • custom [max_freq] [Mhz|GHz]: Set a custom maximum frequency.

  • --governor [ powersave | performance ]

    • powersave: Set the CPU to energy-saving mode.
    • performance: Set the CPU to high-performance mode.

Example Usage:

# Set the user profile to 'work'
./powersaver.sh --user-profile work

# Set custom CPU profile with max frequency of 2.5 GHz and powersave governor
./powersaver.sh --cpu-profile custom 2.5 GHz --governor powersave

Display CPU Info and Limits

If no arguments are provided, the script will display the current CPU model, frequency limits, current frequency policy, and active governors:

./powersaver.sh

Notifications

The script supports desktop notifications (using notify-send) to indicate profile changes. Ensure your desktop environment supports notifications.

License

The Unlicence.

Screenshots

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