Fast highlight indent guides?
reddit / emacs

----------------------------------------------------------------------
Kind-Connection1284 · 2022-02-02 14:47

I'm using doom emacs and turned on the indent guides package but it's
extremely slow when I scroll in a file. Any way to improve
preformance? Or another package that is faster? I feel like this
shouldn't hog performance so much since this feature works flawless in
IDEs.

Edit: One thing to note, it works well when I scroll up the page, but
horrendous when scrolling down

----------------------------------------------------------------------
vecksagos · 2022-02-02 18:27

In the [indent guides](https://github.com/zk-phi/indent-
guide#comparisons-with-highlight-indentation) github has a comparison
with highlight-indentation with this line:
> worse in performance, especially when you open a file that includes
very large, deep blocks

maybe it's a package problem, and here a [list of
packages](https://github.com/DarthFennec/highlight-indent-
guides#alternatives)

----------------------------------------------------------------------
crawsphi · 2022-02-02 19:20

I assume that the implementation is via overlays, which do have a
noticeable effect when there are a lot of them in a large buffer. As
with `display-line-numbers-mode` and `display-fill-column-indicator-
mode` this is probably something that should ultimately be implemented
down in the C display code.

----------------------------------------------------------------------
ZZhanChi · 2022-02-02 20:17

I'm happy with [https://github.com/DarthFennec/highlight-indent-
guides](https://github.com/DarthFennec/highlight-indent-guides) and
Emacs 28 (with native comp) but my files are not huge, max 400 lines
generally.

----------------------------------------------------------------------
ideasman_42 · 2022-02-03 02:05

https://github.com/skeeto/visual-indentation-mode - works well but is
fixed (doesn't read the buffer's indentation).