"CPU LED is a fantastic little menu bar tool for keeping an eye on your CPU load. [...] So if you're at all concerned about your CPU load and you've got space to spare in your menu bar, give CPU LED a whirl. " (Samuel Gibbs - TUAW)
Do you ever wonder how stressed your CPU is? Sometimes, opening a complex activity monitor while your computer is heavily loaded is too late (or too much). Sometimes all you need to know is that your CPU is working hard.
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). You can also choose the status icon appearance so it blends nicely with your status bar style, and hover with your mouse over the leds to see the current usage % and core temperature.
In order to know what is going on with your computer at a glance, CPU LED is the perfect companion for Disk LED!