com.rugarciap.DisableTurboBoost.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
  <dict>
    <key>Label</key>
    <string>com.rugarciap.DisableTurboBoost</string>

    <key>OnDemand</key>
    <false/>

    <key>UserName</key>
    <string>root</string>

    <key>GroupName</key>
    <string>wheel</string>

    <key>RunAtLoad</key>
    <true/>

    <key>LaunchOnlyOnce</key>
    <true/>

    <key>ProgramArguments</key>
    <array>
      <string>/usr/local/bin/tb</string>
      <string>--sync</string>
    </array>
  </dict>
</plist>

tb

#!/bin/bash

# Simple script that reuses kernel extension that comes with "Turbo Boost Switcher" app
# to toggle Turbo Boost. Place this script into /usr/local/bin.
#
# Kernel extension will be unloaded automatically after restart or long sleep.
# To apply current state on startup place "com.rugarciap.DisableTurboBoost.plist" file
# into "/Library/LaunchDaemons" and then load it with:
#   sudo launchctl load /Library/LaunchDaemons/com.rugarciap.DisableTurboBoost.plist
# To apply current state on wake up install sleepwatcher:
#   brew install sleepwatcher
#   brew services start sleepwatcher
# And then add "tb --sync" command into /usr/local/etc/sleepwatcher/rc.wakeup


path="/Applications/Turbo Boost Switcher.app/Contents/Resources"
kextPath="$path/DisableTurboBoost.64bits.kext"
disabledPath="$path/disabled"

function printStatus {
  result=$(kextstat | grep com.rugarciap.DisableTurboBoost)
  if [ -z "$result" ]; then
    echo "Turbo Boost ENABLED"
  else
    echo "Turbo Boost DISABLED"
  fi
}

function disable {
  # Loading kernel extension to disable TB
  sudo kextutil "$kextPath" 2>/dev/null
}

function enable {
  # Unloading kernel extension to re-enable TB
  sudo kextunload "$kextPath" 2>/dev/null
}

if [ "$1" == "--off" ]; then
  disable
  echo 1 > "$disabledPath"
  printStatus
elif [ "$1" == "--on" ]; then
  enable
  echo 0 > "$disabledPath"
  printStatus
elif [ "$1" == "--check" ]; then
  printStatus
elif [ "$1" == "--sync" ]; then
  flag=$(cat "$disabledPath")
  if [ "$flag" == "1" ]; then
    echo "Turbo Boost is set to be disabled. Disabling."
    disable
  else
    echo "Turbo Boost is set to be enabled. Enabling."
    enable
  fi  
  printStatus
else
  echo "Invalid argument, should be --off, --on or --check"
  exit 1
fi

Turbo Boost toggle for macOS

Simple script to toggle Turbo Boost on MacBook Pro