From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#56682: Fix the long lines font locking related slowdowns Date: Fri, 05 Aug 2022 09:05:00 +0300 Message-ID: <83tu6r1b03.fsf@gnu.org> References: <83y1wjhkkh.fsf@gnu.org> <83wnc3hkdg.fsf@gnu.org> <49df74e5-e16a-a532-98d1-66c6ff1eb6c6@yandex.ru> <83pmhuft5a.fsf@gnu.org> <05388e8d8836c2e7ef3e@heytings.org> <136c4fe0fcb9ce5181cb@heytings.org> <3d639ea12689d767ba2a@heytings.org> <838ro44fc8.fsf@gnu.org> <3d639ea126d759bddfea@heytings.org> <83y1w42vp4.fsf@gnu.org> <3d639ea12618e6a503af@heytings.org> <83wnbo2uw3.fsf@gnu.org> <3d639ea126e3a4d880b8@heytings.org> <83k07o2izh.fsf@gnu.org> <3d639ea1265c40a07f40@heytings.org> <83h72s2e3o.fsf@gnu.org> <3d639ea126c6b0c6737b@heytings.org> <838ro42b1g.fsf@gnu.org> <3d639ea126db3913202e@heytings.org> <83wnbn264f.fsf@gnu.org> <3d639ea12684115449f8@heytings.org> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="24851"; mail-complaints-to="usenet@ciao.gmane.io" Cc: gerd.moellmann@gmail.com, 56682@debbugs.gnu.org, monnier@iro.umontreal.ca, dgutov@yandex.ru To: Gregory Heytings Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Fri Aug 05 08:06:29 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 1oJqTd-0006Gt-01 for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 05 Aug 2022 08:06:29 +0200 Original-Received: from localhost ([::1]:48592 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oJqTb-0001Z4-PF for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 05 Aug 2022 02:06:27 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:46376) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oJqTD-0001YV-5A for bug-gnu-emacs@gnu.org; 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Original-Received: from [87.69.77.57] (port=3748 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oJqSE-0007bX-Nm; Fri, 05 Aug 2022 02:05:03 -0400 In-Reply-To: <3d639ea12684115449f8@heytings.org> (message from Gregory Heytings on Thu, 04 Aug 2022 19:26:03 +0000) 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:238815 Archived-At: > Date: Thu, 04 Aug 2022 19:26:03 +0000 > From: Gregory Heytings > cc: gerd.moellmann@gmail.com, 56682@debbugs.gnu.org, monnier@iro.umontreal.ca, > dgutov@yandex.ru > > Alas, it becomes much more sluggish if with a larger frame (160 columns > instead of 80), and/or with only Arabic characters. Emacs takes ~10 > seconds to open a file with only 6000 characters on a single line, and > motion commands are slow. It doesn't surprise me. If you disable font-lock and show-paren-mode, does it become significantly faster? And how does disabling font-lock that measure vs disabling auto-composition-mode with that file? Can you post that file? I'd like to try some ideas I might have with it. > >> You didn't tell me whether it's okay to merge the branch with the > >> latest changes? > > > > I think you can merge. > > Done. Thanks.