From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?utf-8?Q?S=C3=A9bastien_Vauban?= Subject: Re: org-src-fontify-natively makes things very, very slow Date: Mon, 21 Mar 2011 23:23:18 +0100 Message-ID: <80wrjsun8p.fsf@somewhere.org> References: <87ipvhiou8.fsf@ucl.ac.uk> <804o71triy.fsf@somewhere.org> <87bp18su1a.fsf@ucl.ac.uk> <80fwqjqxfj.fsf@somewhere.org> <87oc56q26l.fsf@ucl.ac.uk> <87ipvdo9zs.fsf@ucl.ac.uk> <87tyewk1im.fsf@gmail.com> <87lj089ze7.fsf@pinto.chemeng.ucl.ac.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Return-path: List-Id: "General discussions about Org-mode." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org-mXXj517/zsQ@public.gmane.org Errors-To: emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org-mXXj517/zsQ@public.gmane.org To: emacs-orgmode-mXXj517/zsQ@public.gmane.org Hi Eric, Eric S Fraga wrote: > 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: > > 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 > > From these timings, the font locking doesn't seem to be the issue but may= be > the overlays are. However, commenting out the code that S=C3=A9bastien Va= uban > 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 See http://patchwork.newartisans.com/patch/581/ for a full diff. You can se= e I only add *one* overlay: for the background face. > (well, commenting out the whole condition that includes this code) makes = no > difference at all. I'm surprised. Good to hear, but as some were finger pointing the overlays, and as I added one for every block... But, OK, better like that! For the sake of completeness, know that I first tried to add the background fontification as a text property, but that made the other properties disapp= ear (annihilating the native fontification in fact). No a solution, or I did not try the right way -- which is entirely possible, seen my poor knowledge on this subject (I have to admit I succeeded by trials and errors). > So, I turned off =3Dorg-src-fontify-natively=3D 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? Not that I can think of now. Sorry for not being of any help here. Best regards, Seb --=20 S=C3=A9bastien Vauban