Keeping an eye on the load averages of your webserver is generally a good idea. I used to keep a PuTTY window open with htop running for each of my servers so that I could easily flip over and check load averages and such.

With this Load Average desktop gadget, you can put a small script on your server and see the load averages right on your desktop! The server script requires that you are running PHP >= 5.1.3.

Features:

• Select the delay between updates.
• Define location of server side script.
• Put multiple copies on your desktop to keep up with all your servers.

Download the Load Average Gadget

Download the PHP script