From: "Sebastian Wålinder" <s.walinder@gmail.com>
To: emacs-orgmode@gnu.org
Subject: org-fold style text-properties slowdown
Date: Thu, 22 Jun 2023 10:30:51 +1000 [thread overview]
Message-ID: <87pm5oe3t0.fsf@nixos.mail-host-address-is-not-set> (raw)
Hello!
I write regularly in a massive org file ~160 000 lines, and experience progressive slowdowns as the buffer remains open when I have the setting `(setq org-fold-core-style 'text-properties)`.
When the file is first opened, all operations are very fast. But as I keep using, it keeps slowing down and eventually slows to a crawl where typing a single character takes several seconds. However, after closing the buffer and opening the file up again, the speed returns to normal.
With `(setq org-fold-core-style 'overlays)` in my `early-init.el`, I have no slowdown issue related to org-fold over time.
Running the CPU profiler while typing a few characters in the buffer yields me this report:
```
17969 99% - command-execute
17969 99% - funcall-interactively
17956 99% - org-self-insert-command
17940 99% - org-fold-core--fix-folded-region
178 0% - org-fold-core-next-folding-state-change
177 0% #<compiled 0x72c2e0e7737b768>
42 0% - org-fold-core-get-region-at-point
1 0% org-fold-core--property-symbol-get-create
21 0% - org-fold--reveal-outline-maybe
18 0% - org-fold--reveal-headline-at-point
16 0% - org-end-of-subtree
9 0% - org-back-to-heading-or-point-min
8 0% - org-before-first-heading-p
8 0% org-element-at-point
1 0% org-back-to-heading
6 0% org-element-at-point
2 0% - rx-to-string
2 0% - rx--translate
2 0% - rx--translate-form
1 0% - rx--translate-or
1 0% mapcan
1 0% - org-fold-core-get-folding-spec
1 0% org-fold-core--property-symbol-get-create
1 0% - org-fold-core-region-folded-p
1 0% - org-fold-core-get-folding-spec
1 0% org-fold-core-get-folding-spec-from-alias
1 0% #<compiled 0x1e4c54b2bcafef>
1 0% - #<lambda 0x1e33d5fbace2c>
1 0% let
1 0% - org-element--cache-after-change
1 0% - org-element--cache-submit-request
1 0% org-element--cache-sync
3 0% - my/system-hydra/profiler-stop-and-exit
3 0% - hydra--call-interactively-remap-maybe
3 0% funcall-interactively
3 0% - evil-normal-state
1 0% - evil-change-state
1 0% evil-insert-state
3 0% - my/system-hydra/profiler-report-and-exit
2 0% - hydra--call-interactively-remap-maybe
2 0% funcall-interactively
1 0% - hydra-keyboard-quit
1 0% - #<compiled 0x19801059c7c2>
1 0% - message
1 0% - apply
1 0% mini-modeline--reroute-msg
1 0% - evil-previous-line
1 0% - evil-line-move
1 0% line-move
1 0% - my/system-hydra/body
1 0% - my/hydra-pre-cursor
1 0% evil-set-cursor-color
```
The memory profiler reports nothing significant. It appears `org-fold-core--fix-folded-region` is what's taking all the cycles. What's the best way for me to proceed debugging this?
Setup:
`GNU Emacs 30.0.50 (build 1, x86_64-pc-linux-gnu, X toolkit, cairo version 1.16.0, Xaw3d scroll bars)`
`Org mode version 9.6.6 (release_9.6.6 @ /nix/store/q8adc2srnbipkahbwffwg006d09yk02g-emacs-git-20230618.0/share/emacs/30.0.50/lisp/org/)`
Thanks!
Sebastian
next reply other threads:[~2023-06-22 0:32 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-22 0:30 Sebastian Wålinder [this message]
2023-06-22 10:11 ` org-fold style text-properties slowdown Ihor Radchenko
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