Variable: fast-lock-minimum-size
fast-lock-minimum-size is a customizable variable defined in
fast-lock.el.gz.
Value
25600
Documentation
Minimum size of a buffer for cached fontification.
Only buffers more than this can have associated Font Lock cache files saved.
If nil, means cache files are never created.
If a list, each element should be a cons pair of the form (MAJOR-MODE . SIZE),
where MAJOR-MODE is a symbol or t (meaning the default). For example:
((c-mode . 25600) (c++-mode . 25600) (rmail-mode . 1048576))
means that the minimum size is 25K for buffers in C or C++ modes, one megabyte
for buffers in Rmail mode, and size is irrelevant otherwise.
Source Code
;; Defined in /usr/src/emacs/lisp/obsolete/fast-lock.el.gz
;; User Variables:
(defcustom fast-lock-minimum-size 25600
"Minimum size of a buffer for cached fontification.
Only buffers more than this can have associated Font Lock cache files saved.
If nil, means cache files are never created.
If a list, each element should be a cons pair of the form (MAJOR-MODE . SIZE),
where MAJOR-MODE is a symbol or t (meaning the default). For example:
((c-mode . 25600) (c++-mode . 25600) (rmail-mode . 1048576))
means that the minimum size is 25K for buffers in C or C++ modes, one megabyte
for buffers in Rmail mode, and size is irrelevant otherwise."
:type '(choice (const :tag "none" nil)
(integer :tag "size")
(repeat :menu-tag "mode specific" :tag "mode specific"
:value ((t . nil))
(cons :tag "Instance"
(radio :tag "Mode"
(const :tag "all" t)
(symbol :tag "name"))
(radio :tag "Size"
(const :tag "none" nil)
(integer :tag "size"))))))