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Activate jit-lock

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Improves scrolling and buffer performance by deferring font-locking
until you're idle. YMMV
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Henrik Lissner 2020-04-25 00:18:30 -04:00
parent efee551709
commit ddc7bf782c
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@ -273,6 +273,11 @@ users).")
;; quickly self-correct. ;; quickly self-correct.
(setq fast-but-imprecise-scrolling t) (setq fast-but-imprecise-scrolling t)
;; Font locking is the source of much slowness in Emacs. jit-lock-mode tries to
;; defer fontification until the user is idle. This should help... in theory.
(setq jit-lock-defer-time 0 ; only defer while processing input
jit-lock-stealth-time 2) ; fontify the rest of the buffer after a delay
;; Resizing the Emacs frame can be a terribly expensive part of changing the ;; Resizing the Emacs frame can be a terribly expensive part of changing the
;; font. By inhibiting this, we halve startup times, particularly when we use ;; font. By inhibiting this, we halve startup times, particularly when we use
;; fonts that are larger than the system default (which would resize the frame). ;; fonts that are larger than the system default (which would resize the frame).