From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Gregory Heytings Newsgroups: gmane.emacs.bugs Subject: bug#56682: Fix the long lines font locking related slowdowns Date: Fri, 12 Aug 2022 12:34:54 +0000 Message-ID: References: <83les71ilg.fsf@gnu.org> <06c5560d-3009-e5a5-3d33-fe5d2ec32d6b@yandex.ru> <74ddc877f17a06d8f120@heytings.org> <100d08b3-c25b-683f-6def-39052107ab59@yandex.ru> <83h72r16g1.fsf@gnu.org> <640c2e07-98e1-96d6-bb02-19f5f03f637f@yandex.ru> <834jyq29o1.fsf@gnu.org> <92da07bd028e3ede61a6@heytings.org> <47894c57-dd8b-5778-240a-3fa6540e4d37@yandex.ru> <92da07bd02941d5537e9@heytings.org> <5308e3b5-a160-17d7-77ee-b1d00acfa20d@yandex.ru> <92da07bd02a6cc861e1a@heytings.org> <837d3lzv8n.fsf@gnu.org> <2c8d6755-cfe2-6559-3fde-3fa30ffb411e@yandex.ru> <83mtcgy44k.fsf@gnu.org> <83k07jx5jn.fsf@gnu.org> <866e510d-a060-7daa-d002-97861d056fa7@yandex.ru> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="18149"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 56682@debbugs.gnu.org, Eli Zaretskii , monnier@iro.umontreal.ca To: Dmitry Gutov Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Fri Aug 12 14:35:13 2022 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1oMTse-0004VQ-0O for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 12 Aug 2022 14:35:12 +0200 Original-Received: from localhost ([::1]:60422 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oMTsc-0003UQ-CJ for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 12 Aug 2022 08:35:10 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:44932) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oMTsU-0003UD-0n for bug-gnu-emacs@gnu.org; Fri, 12 Aug 2022 08:35:02 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:37855) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1oMTsT-0002EF-Nj for bug-gnu-emacs@gnu.org; Fri, 12 Aug 2022 08:35:01 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1oMTsT-0003Cp-Io for bug-gnu-emacs@gnu.org; Fri, 12 Aug 2022 08:35:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Gregory Heytings Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 12 Aug 2022 12:35:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 56682 X-GNU-PR-Package: emacs Original-Received: via spool by 56682-submit@debbugs.gnu.org id=B56682.166030769712310 (code B ref 56682); Fri, 12 Aug 2022 12:35:01 +0000 Original-Received: (at 56682) by debbugs.gnu.org; 12 Aug 2022 12:34:57 +0000 Original-Received: from localhost ([127.0.0.1]:55837 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oMTsO-0003CT-VP for submit@debbugs.gnu.org; Fri, 12 Aug 2022 08:34:57 -0400 Original-Received: from heytings.org ([95.142.160.155]:49712) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oMTsN-0003CL-F5 for 56682@debbugs.gnu.org; Fri, 12 Aug 2022 08:34:56 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=heytings.org; s=20220101; t=1660307694; bh=cZdSc/132uGqMmvN4QyhFQ+bXkC16pJESd+hNLQpLlc=; h=Date:From:To:cc:Subject:In-Reply-To:Message-ID:References:From; b=OkyIOMfyxsuT4iB1lLE4l0PbZueBoV4haBn90/GQAcyMffpzX8GZsGvXscsk4tIlD sASDAloaRqxfmVS/MpPJq2mLa/Kf6u+/92Rv4R78ZwHaUkYSX1/eOhxWf3qr5ZnjfG Lq0oAsbrd749uEGiMz01g/SAYfydyD2yeTPjgaWhcsyMyKbY2cdFDz0lPkDSrxcadt DL3aJRbQLYbgKQi1Nzli52VEdUsaEOvjCkk8xM2UXY3fXSTbX5FoTunPUIP0hBCdmE HsmT30SCSpad+teDNSjv+uFnpIcSs1KVbfx48RcZpp9Q8H+wMm4tfvDoHSouAMRTtb xn0tbFDMqtxQA== In-Reply-To: <866e510d-a060-7daa-d002-97861d056fa7@yandex.ru> X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:239401 Archived-At: > > I've pushed a branch scratch/font_lock_large_files. > Thank you. But as I told you earlier, what that branch contains is a too local fix. You created a new minimal major mode to edit JSON files, in which you removed everything that made font locking slow in js-mode. As a consequence, now editing the dictionary.json file is indeed reasonably fast without disabling font locking or using locked narrowing (although it is still too slow to my taste for larger files, e.g. I have to wait five seconds after M-> in a ten times larger JSON file). And the original problem is still present if you edit, for example, a 20 MB minified JavaScript file...