The sar command, native to Solaris and often installed on Linux systems via the sysstat package, is extremely useful in analyzing current and recent system performance. On the other hand, if you would ...

As someone who's been working as a system administrator for a number of years, it's easy to take tools for granted that I've used for a long time and assume everyone has heard of them. Of course, new ...

When your Linux server starts feeling sluggish, you might benefit from looking at your swap space and gauging whether it’s adequately sized for your system’s workload. Fortunately, Linux has some ...

If the sysstat package isn’t installed on your Linux system (which it generally isn’t by default), you can easily grab a copy with your favorite Linux installer — typically one of the following ...