Many Linux users love to tinker under the hood to increase the performance of their computers, and Linux gives you some great tools to do just that. Whereas Moms tell us, "Don't fix what's not broken," Dads often say, "Fix it until it breaks." In this section, you learn about many of the commands used to tune, or "tweak," your file system.
Before you undertake any "under the hood" work with Linux, however, keep a few points in mind. First, perform a benchmark on your system before you begin. Linux does not offer a well-developed benchmarking application, but availability changes rapidly. You can search online for the most up-to-date information for benchmarking applications for Linux. If you are a system administrator, you might choose to create your own benchmarking tests. Second, tweak only one thing at a time so you can tell what works, what does not work, and what breaks. Some of these tweaks might not work or might lock up your machine.
Always have a working boot disc handy and remember that you are personally assuming all risks for attempting any of these tweaks.
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