Integrate a LED indicator for the CPU of your machine. Check out the options for synchronizing the system readings of hardware performance and the coloured indication viewed from the menu bar. Check the coding of the signals and enable or disable feedback.
CPU LED 1.3 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The actual developer of this free Mac application is Agile Route.
The following versions: 1.3 and 1.2 are the most frequently downloaded ones by the program users. This free application was developed to work on Mac OS X 10.6 or later. Some of the software aliases include "CPULed". CPU LED for Mac lies within System Tools, more precisely Benchmark. We recommend checking the downloaded files with any free antivirus.
From the developer:
CPU LED is a very lightweight unobtrusive app that adds a LED in your status bar indicating your CPU activity (coded as light, medium or hard). You can have only one light for all your processors or one per core (your choice).
Sometimes, opening a complex activity monitor while your computer is heavily loaded is too late (or too much).
You may want to check out more Mac applications, such as Disk LED, Disk LED Pro or Radia LED Clock, which might be related to CPU LED.