On 21.3.2011, at 18:06, Eric S Fraga wrote: > Hello again, > > going back to the original subject of this thread (although thanks all > for your inputs on yasnippet ;-), I have started working on a new > document and am finding the slowdown of navigation (next-line) very > annoying. In this document, I have two gnuplot source blocks. > Navigating through them, I get the following results from elp: > > --8<---------------cut here---------------start------------->8--- > next-line 54 > 5.9466770000 0.1101236481 > previous-line 44 > 0.4350030000 0.0098864318 > org-encrypt-entries 1 > 0.000424 0.000424 > org-scan-tags 1 > 0.000368 0.000368 > org-make-tags-matcher 1 > 5.1e-05 5.1e-05 > org-activate-plain-links 1 > 2.4e-05 2.4e-05 > org-raise-scripts 1 > 2.1e-05 2.1e-05 > org-fontify-meta-lines-and-blocks 1 > 1.9e-05 1.9e-05 > org-font-lock-hook 1 > 1.9e-05 1.9e-05 > org-outline-level 5 > 1.9e-05 3.8e-06 > org-mode-flyspell-verify 14 > 1.8e-05 1.285...e-06 > org-inlinetask-fontify 1 > 1.5e-05 1.5e-05 > org-activate-footnote-links 1 > 1.5e-05 1.5e-05 > org-unfontify-region 1 > 1.2e-05 1.2e-05 > org-do-emphasis-faces 1 > 1.2e-05 1.2e-05 > org-activate-angle-links 1 > 1.2e-05 1.2e-05 > org-activate-dates 1 > 1.1e-05 1.1e-05 > org-fontify-entities 1 > 1.1e-05 1.1e-05 > --8<---------------cut here---------------end--------------->8--- > > From these timings, the font locking doesn't seem to be the issue but > maybe the overlays are. However, commenting out the code that Sébastien > Vauban indicated: > >> Maybe this is (partly?) due to the overlay I added: >> >> #+begin_src emacs-lisp >> (overlay-put (make-overlay beg1 block-end) >> 'face 'org-block-background)) >> #+end_src > > (well, commenting out the whole condition that includes this code) makes > no difference at all.
Did you restart Emacs? Because if you just continued, all those overlays are there already. > > So, I turned off =org-src-fontify-natively= and things are back to > normal: next-line is as fast as previous-line. I can put up without the > fontification so this is what I am doing now. > > However, as it's a pity to lose the native fontification, it would be > nice to solve this problem in another way. Can anybody suggest any > other thing to try? The problem with the multiple overlays that were created during native fontification is now fixed. I would be interested to know if this improves the situation. - Carsten
