System Administrators Toolkit: Monitoring a slow system

When your Unix/Linux system starts going slowly, you need to find out why, and quickly, what is going on. That’s the focus of my new SAT piece: Monitoring a slow system.From the intro:

When your UNIX system runs slow, it is vital that you discover what the problem is as quickly as possible so you can get your system back into the normal operating mode. There are many causes for a slow system, but actually identifying the problem can be exceedingly difficult. In this article, study examples of how to identify and diagnose the cause of your slow running UNIX system to get your machine running properly again.

Read the full article.