How can I improve the performance (very slow in large repos)?

[arnab]

For a large repo (9.8k files) I find the completion to be very laggy: see my SO question.

How can I introduce a delay into the process such that only when there is a gap in typing (say 300ms) we go out and run a git ls-files ...?

[Wilfred]

Try disabling ido's flexible matching. Generally, it's unnecessary (it enables "fbz" to match "foobarbaz") and really hurts performance.

M-x set-variable <RET> ido-enable-flex-matching <RET> nil

[arnab]

Thanks. In the meantime, I started using helm and helm-ls-git and that's working well for now.

I will try this out and report back if it there's more trouble. Feel free to close the issue.

[Wilfred]

Glad you found something that works. I'm not the maintainer of this excellent repo, so I'll leave tickets to him/her.

For my future reference, you can do this with defadvice:

(defadvice find-file-in-repository (around disable-ido-flex-matching)
  (let ((ido-enable-flex-matching nil))
    ad-do-it))

(ad-activate 'find-file-in-repository)