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: Thu, 04 Aug 2022 15:08:07 +0000 Message-ID: <3d639ea1265c40a07f40@heytings.org> References: <837d46mjen.fsf@gnu.org> <8335esjppt.fsf@gnu.org> <837d43j198.fsf@gnu.org> <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> Mime-Version: 1.0 Content-Type: text/plain; format=flowed; charset=us-ascii Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="16948"; 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 Thu Aug 04 17:11:21 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 1oJcVM-0004Eh-Ps for geb-bug-gnu-emacs@m.gmane-mx.org; Thu, 04 Aug 2022 17:11:20 +0200 Original-Received: from localhost ([::1]:49484 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oJcVL-00057M-TA for geb-bug-gnu-emacs@m.gmane-mx.org; Thu, 04 Aug 2022 11:11:19 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:50282) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oJcT9-0003By-0v for bug-gnu-emacs@gnu.org; Thu, 04 Aug 2022 11:09:03 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:36375) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1oJcT8-0004qC-Ov for bug-gnu-emacs@gnu.org; Thu, 04 Aug 2022 11:09:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1oJcT8-0004tu-Hd for bug-gnu-emacs@gnu.org; Thu, 04 Aug 2022 11:09:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Gregory Heytings Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Thu, 04 Aug 2022 15:09:02 +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=B56682.165962569118750 (code B ref 56682); Thu, 04 Aug 2022 15:09:02 +0000 Original-Received: (at 56682) by debbugs.gnu.org; 4 Aug 2022 15:08:11 +0000 Original-Received: from localhost ([127.0.0.1]:54349 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oJcSJ-0004sL-FI for submit@debbugs.gnu.org; Thu, 04 Aug 2022 11:08:11 -0400 Original-Received: from heytings.org ([95.142.160.155]:38882) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oJcSH-0004sD-D9 for 56682@debbugs.gnu.org; Thu, 04 Aug 2022 11:08:10 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=heytings.org; s=20220101; t=1659625688; bh=+C6b52KepCRQZnQzyM6p/vlVluukocLqWw4ZXLk3rw4=; h=Date:From:To:cc:Subject:In-Reply-To:Message-ID:References:From; b=MgXGphY/qEoaidyZxDOY+rEHa0A5urTnzowKhFDICpIGh6S5qmkRG0ybk52GbCnOB nYCvPlEfsUffX4O8lYKySwUATYHHAfF+XQ1smPzyaUV7lsxFQuyF8sIaMO4lx2JNst i7Yh1e694cbD1qX9eDVyDY1XSFFcyMH9TjFLH5q6KIZkGG90RxNek5UEIhpWVB8bfH yWxxJLhZNasXxvAY7v8ty6N2dAm4GiqRUacmkl41CmRx6VGGA9gpmexEednYcUQPPO pnlzmtuM8y6ZM5tfrZ1UUSvabkxaQYMibUe3bkBjw8Codigqr1z2XqC3j3EKPqiRpp rB+zUudNL8kbA== In-Reply-To: <83k07o2izh.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:238756 Archived-At: >> navigating through the locales.json file was slow (at some positions) >> before the change and is now reasonably fast (but alas not >> instantaneous). > > Which navigation commands were slow, as compared to the same commands in > other portions of this file? > For example C-p, C-n, C-v, M-v. C-f and C-b also, but much less so. For example, open the file and do M-g c 70000 RET. This took about 5 seconds. Now do C-n, this again took about 5 seconds. With the optimizations, M-g c 70000 RET is almost immediate, and C-n there takes less than a second. But you're right, this slowdown has little to do with bidi. A file with a sufficiently long single line of Arabic text has the same problem. (But not one with a line of Hebrew text.)