Projectile: Huge startup perfomance impact

[bomgar]

Expected behavior

Emacs startup is fast

Actual behavior

Startup emacs (with working_dir=home which is default if started via dmenu) does a lot of IO and takes a long while

Steps to reproduce the problem

Start emacs. The projectile project type display for the scratchpad takes a really long time.

Commit

Commit 561d5aa17f7ce01c84b077c3ea2d77e2ae69c095 seems to be causing this. If i checkout the revision before that the problem is gone.

(defun projectile-go-project-p ()
  "Check if a project contains Go source files."
  (cl-some
   (lambda (file)
     (string= (file-name-extension file) "go"))
(projectile-current-project-files)))

This might be the problem but I'm not sure. projectile-current-project-files needs to load all files in my home directory.

Strace shows that the emacs project loads a lot of files on startup. The startup time is probably dependant on the size of the home directory.

Emacs version

25.3

Operating system

Manjaro Linux

[bomgar]

Adding this to my config solves the problem:

  (setq projectile-mode-line
        '(:eval (format " Projectile[%s]"
                        (projectile-project-name))))

[fbertux]

@bomgar

Yes, this work to me. Without this code is impossible to work with projectile enable.

[mriehl]

Same, thanks for the workaround. Strangely the commandline emacs (emacs -nw) starts up quickly, but then slows down to a crawl (feels like it's wading through home in the background) while the ui emacs (emacs) seems to do this synchronously and blocks rendering until it's done searching through my home.

[fbertux]

I'm using emacs -nw too and startup time is normal, but is very slow to navigate on code with C-p C-n