Variable: linum-eager
linum-eager is a customizable variable defined in linum.el.gz.
Value
t
Documentation
Whether line numbers should be updated after each command.
The conservative setting nil might miss some buffer changes,
and you have to scroll or press C-l (recenter-top-bottom) to update the numbers.
Source Code
;; Defined in /usr/src/emacs/lisp/linum.el.gz
(defcustom linum-eager t
"Whether line numbers should be updated after each command.
The conservative setting nil might miss some buffer changes,
and you have to scroll or press \\[recenter-top-bottom] to update the numbers."
:group 'linum
:type 'boolean)