Hi, * Karl Voit <devn...@karl-voit.at> wrote: > Hi Ihor, > > * Ihor Radchenko <yanta...@gmail.com> wrote: >> >> So far, I came up with the following partial solution searching and >> showing hidden text. >> >> (defun org-find-text-property-region (pos prop) >> (define-advice isearch-search-string (:after (&rest _) put-overlay) >> (defun org-restore-invisibility-specs (&rest _) >> (add-hook 'post-command-hook #'org-restore-invisibility-specs) >> (defun org-flag-region (from to flag spec) >> (defun org-unfontify-region (beg end &optional _maybe_loudly) > > After a couple of hours working with these patches, my feedback is > very positive. Besides some visual glitches when creating a new > heading with org-expiry-insinuate activated (which automatically > adds :CREATED: properties), I could not detect any side-effect so > far (will keep testing). > > The visual glitch looks like that: > >:PROPERTIES:X:CREATED: [2020-05-04 Mon 18>54] > X > > ... with "X" being my character that symbolizes collapsed content. > The way it looked without the patch was a simple collapsed property > drawer.
Here some hard numbers to demonstrate the impact: my-org-agenda: from 11-16s down to 10 -> not much of a difference helm-org-contacts-refresh-cache: 29-59s down to 2½ -> HUGE Emacs boot time: 50-65s down to 10 -> HUGE Navigating the cursor in large Org files -> HUGE subjective impact >>> Anyway, the real fix should come from Emacs itself. There are ways to >>> make overlays faster. These ways have already been discussed on the >>> Emacs devel mailing list, but no one implemented them. It is a bit sad >>> that we have to find workarounds for that. >> >> I guess that it is a very old story starting from the times when XEmacs >> was a thing [1]. I recently heard about binary tree implementation of >> overlays (there should be a branch in emacs git repo) [2], but there was >> no update on that branch for a while. So, I do not have much hope on >> Emacs implementing efficient overlay access in the near future. (And I >> have problems with huge org files already). > > I can not express how this also reflects my personal situation. > >> [1] >> https://www.reddit.com/r/planetemacs/comments/e9lgwn/history_of_lucid_emacs_fsf_emacs_schism/ >> [2] https://lists.gnu.org/archive/html/emacs-devel/2019-12/msg00323.html > > [3] https://karl-voit.at/2020/05/03/current-org-files > -- get mail|git|SVN|photos|postings|SMS|phonecalls|RSS|CSV|XML into Org-mode: > get Memacs from https://github.com/novoid/Memacs < Personal Information Management > http://Karl-Voit.at/tags/pim/ Emacs-related > http://Karl-Voit.at/tags/emacs/
