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: Sun, 07 Aug 2022 00:30:16 +0000 Message-ID: <6ae35c9306e86f383bc8@heytings.org> References: <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> <83tu6r1b03.fsf@gnu.org> <92da07bd02b96d54dbf4@heytings.org> <835yj62a18.fsf@gnu.org> <92da07bd02f5963a2da4@heytings.org> <83y1w1xyam.fsf@gnu.org> 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="2790"; mail-complaints-to="usenet@ciao.gmane.io" Cc: gerd.moellmann@gmail.com, 56682@debbugs.gnu.org, monnier@iro.umontreal.ca, dgutov@yandex.ru To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sun Aug 07 02:31:11 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 1oKUCE-0000Xm-UO for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 07 Aug 2022 02:31:11 +0200 Original-Received: from localhost ([::1]:46802 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oKUCD-0006Ir-Bn for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 06 Aug 2022 20:31:09 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:57266) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oKUC6-0006Ii-Rb for bug-gnu-emacs@gnu.org; Sat, 06 Aug 2022 20:31:02 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:45938) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1oKUC6-0004uI-Ia for bug-gnu-emacs@gnu.org; Sat, 06 Aug 2022 20:31:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1oKUC6-0004eF-Eo for bug-gnu-emacs@gnu.org; Sat, 06 Aug 2022 20:31:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Gregory Heytings Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 07 Aug 2022 00:31:02 +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=B56682.165983222217807 (code B ref 56682); Sun, 07 Aug 2022 00:31:02 +0000 Original-Received: (at 56682) by debbugs.gnu.org; 7 Aug 2022 00:30:22 +0000 Original-Received: from localhost ([127.0.0.1]:35686 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oKUBS-0004d8-CR for submit@debbugs.gnu.org; Sat, 06 Aug 2022 20:30:22 -0400 Original-Received: from heytings.org ([95.142.160.155]:42386) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oKUBN-0004ct-Sl for 56682@debbugs.gnu.org; Sat, 06 Aug 2022 20:30:21 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=heytings.org; s=20220101; t=1659832216; bh=R+t/87X4xQ09NhnZpwMBGPxNEI/YrMn/KhJZEw2EPR4=; h=Date:From:To:cc:Subject:In-Reply-To:Message-ID:References:From; b=ImFojjZz8ZOzwfXz5IZ/BpgQROUpTNRtMuGsqhRorRymHUJ2d82QdLqaoea153gXw r/kQqKeEyIF9KVQPHsZD0u0yiN5gqRzQRXIhnblEBl8vWt2big26X0HACFpCtlW6hP mLBAEFhqPhjR2t76wkl20LPbAKZaxWua0f0N2wy9BQAC4npeGvP7RFwK4BmuJ83ONL /69zQTu8lDdUuTODpFVE2p1Hu8KfTelSk3O3YgAG1JEI9ArILWg+aKRN/UsgBsXdMc 0oIWELALpgmM9wRn6Xy0/0ApuIGb/+2O8+3KocQe3keFKuNkYEY/7v6Sd0G5Zh19Eo tAtBLF4jriyOg== In-Reply-To: <83y1w1xyam.fsf@gnu.org> 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:239010 Archived-At: >> Indeed, that seems to be the culprit here, I didn't know that text-mode >> was an exception here. If I set bidi-paragraph-direction to >> 'left-to-right after visiting the arabic-small.txt file, Emacs (mis) >> behaves like it does for the other Arabic files: it becomes slow, and >> C-n C-p do not work correctly anymore. > > I've installed a change that makes Arabic rendering roughly twice > faster. It is still quite slow, but less so. > Yes, I've seen that change, too. It's better now, I wonder if I'll manage to make it even better.