makeinfo Preferred

The makeinfo utility creates an Info file from a Texinfo source file more quickly than either of the Emacs formatting commands and provides better error messages. We recommend it. makeinfo is a C program that is independent of Emacs. You do not need to run Emacs to use makeinfo, which means you can use makeinfo on machines that are too small to run Emacs. You can run makeinfo in any one of three ways: from an operating system shell, from a shell inside Emacs, or by typing the C-c C-m C-r or the C-c C-m C-b command in Texinfo mode in Emacs.

The texinfo-format-region and the texinfo-format-buffer commands are useful if you cannot run makeinfo. Also, in some circumstances, they format short regions or buffers more quickly than makeinfo.