this post was submitted on 30 Oct 2023
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Share how did you make Emacs faster. (alien.top)
submitted 1 year ago by larrasket@alien.top to c/emacs
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I've been looking for methods to improve Emacs performance especially with my configuration being over >3k. I'm not particularly interested in startup-time since I never close Emacs. Here's what I found so far

(setq package-native-compile                            t
      gcmh-high-cons-threshold                          100000000
      gc-cons-threshold                                 100000000
      scroll-conservatively                             101
      jit-lock-defer-time                               0
      large-file-warning-threshold                      nil)



(add-hook 'after-init-hook #'(lambda () (setq gc-cons-threshold (* 100 1000 1000))))
(defvar gc-timer nil)
(defun salih/maybe-gc ()
  (let ((original gc-cons-threshold))
    (setq gc-cons-threshold 800000)
    (setq gc-cons-threshold original
          gc-timer (run-with-timer 2 nil #'salih/schedule-maybe-gc))))

(defun salih/schedule-maybe-gc ()
  (setq gc-timer (run-with-idle-timer 2 nil #'salih/maybe-gc)))

(salih/schedule-maybe-gc)

I can tell that I've noticed some improvements.

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[–] ddptr@alien.top 1 points 1 year ago (1 children)

Also if you need to use windows, I found out recently that even GUI apps can be run under WSL. That seems to help the speed problem (I only tried magit and basic file handling and it is much closer to the speed under Linux)

[–] monad_in_disguise@alien.top 1 points 1 year ago

yes, definitely use WSL if you are on windows! Emacs goes from useable, to very performant when you setup WSL for GUI :)