Kernel Tuning

Tuning the kernel is a hard subject to deal with. Some tunables are well known and easy to explain. Others are more complex or change from one release to the next. The settings in use are often based on out-of-date folklore. This chapter identifies and explains some of the variables that are safe to tune. If you also use other versions of Unix, you may be accustomed to having a long list of tunable parameters to set up when you rebuild the kernel. You are probably looking for the equivalent list for Solaris 2, so I will compare tunables with other Unix implementations to identify the ones that size automatically in Solaris 2 and don’t need tuning.

A fundamental issue is the distinction between interfaces, implementations, and behaviors. ...

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