Faster Startup for your Emacs

init-fast-startup-emacs.el

;; gc-cons-threshold is the number of bytes of consing before a garbage collection is invoked. It’s normally set at 800,000 bytes, but for me that invokes the GC 39 times!!! during startup (gcs-done) , and the GC is sloooow. I’ve set it to ~384M above. And now no GC invocations during startup. source: 2 easy little known steps to speed up Emacs start up time
;; reset the gc-cons-threshold to its defaults values after startup
;; **Faster Startup**
;; Speed up startup
(setq gc-cons-threshold 402653184
      gc-cons-percentage 0.6)
(add-hook 'after-init-hook
          `(lambda ()
             (setq gc-cons-threshold 800000
                   gc-cons-percentage 0.1)
             (garbage-collect)) t)