Creating a custom tuned profile
Once we've commented on the different tuned profiles... How do they work? How to create one?
Let's examine, for example, latency-performance in the next lines of code, by checking the /usr/lib/tuned/latency-performance/tuned.conf file.
In general, the syntax of the file is described in the man tuned.conf page, but the file, as you will be able to examine, is an initialization (ini)-file—that is, a file organized in categories, expressed between brackets and pairs of keys and values assigned by the equals (=) sign.
The main section defines a summary of the profile if it inherits from another profile via include, and the additional sections depend on the plugins installed.
To learn about the available plugins, the documentation included in the man page (man tuned.conf) instructs us to execute rpm -ql tuned | grep 'plugins/plugin_.*.py$', which provides an output similar to this:
Figure 16.8 ...
