CPU-Activity-Touchbar

Utilities to enable CPU Activity as a touchbar widget

This allows the touchbar to display a graph of the CPU activity over the last 100 seconds by interval of 5 seconds.

cpuActivity

This utility simply returns the CPU activity in percent (%) beware that this is the sum of the activity percentage of each of your cores, so if you have 4 cores. Your maximum activity is 400%

cpuHistory

This utility add the current CPU activity to the /tmp/cpu.log file and only keep the last 20 entries. It also prints the content of the file to stdout.

cpuGraph

This script reads off the /tmp/cpu.log file, parses it, and generates a graph in heic format at location /tmp/cpulogimage.heic. It also prints out the JSON file that will be interpreted by BTT in order to update the icon in the touchbar with the new image.

Since my own laptop has 4 cores I divide the percentage by 400. If you have more (or less) cores you might want to change the "coreCount" variable in this file.

Installation

Pull the project with

git pull https://github.com/andrevidela/CPU-Activity-Touchbar.git

Then go into its directory

cd CPU-Activity-Touchbar

Here, you can use the install.sh script to symlink those utilities to your location of your preference by giving it the path as argument. I personally put them in /usr/local/bin. Which means I use the script like that

sh install.sh /usr/local/bin

Better Touch Tool installation

In order for this to work you will need BetterTouchTool and you will have to add a new button in your touchbar.

1. First create a new TouchBar trigger
2. Select TouchBar Widget and then Shell script/Task widget
3. In the Script field enter the following program:

cpuHistory > /dev/null
cpuGraph

You can tweak the refresh rate by selecting another time interval.