Variable: auto-save-interval
auto-save-interval is a customizable variable defined in keyboard.c.
Value
300
Documentation
Number of input events between auto-saves.
Zero means disable autosaving due to number of characters typed.
Source Code
// Defined in /usr/src/emacs/src/keyboard.c
DEFVAR_INT ("auto-save-interval", auto_save_interval,
doc: /* Number of input events between auto-saves.
Zero means disable autosaving due to number of characters typed. */);