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: Mon, 01 Aug 2022 16:04:34 +0300 Message-ID: <83les82jz1.fsf@gnu.org> References: <837d46mjen.fsf@gnu.org> <8a3eaeef01be5bfaa5ef@heytings.org> <05388e8d8812bfa3695d@heytings.org> <83v8rf5894.fsf@gnu.org> <65cb7c73fd4a999cca00@heytings.org> <8c7321f2f3400a5db9be@heytings.org> <8c7321f2f388e5343475@heytings.org> <6ea376f6-d503-06d8-6d83-50c52b695394@yandex.ru> <8c7321f2f3ac52bfee4b@heytings.org> <2f7eeea3-6ba9-d2c2-1fb9-dd40d2de2002@yandex.ru> <8c7321f2f368e8dd096d@heytings.org> <83tu6w2mrm.fsf@gnu.org> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="9438"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 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 Mon Aug 01 15:07:44 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 1oIV94-0002Ao-3b for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 01 Aug 2022 15:07:42 +0200 Original-Received: from localhost ([::1]:47892 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oIV93-0006Vo-3K for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 01 Aug 2022 09:07:41 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:54594) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oIV6U-000422-MR for bug-gnu-emacs@gnu.org; Mon, 01 Aug 2022 09:05:03 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:49913) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1oIV6U-00061Y-CW for bug-gnu-emacs@gnu.org; Mon, 01 Aug 2022 09:05:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1oIV6U-0002m4-0J for bug-gnu-emacs@gnu.org; Mon, 01 Aug 2022 09:05:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 01 Aug 2022 13:05:01 +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=B56682.165935909610649 (code B ref 56682); Mon, 01 Aug 2022 13:05:01 +0000 Original-Received: (at 56682) by debbugs.gnu.org; 1 Aug 2022 13:04:56 +0000 Original-Received: from localhost ([127.0.0.1]:39662 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oIV6N-0002lh-Km for submit@debbugs.gnu.org; Mon, 01 Aug 2022 09:04:55 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:41570) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oIV6L-0002lS-LK for 56682@debbugs.gnu.org; Mon, 01 Aug 2022 09:04:54 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:48888) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oIV6D-0005zY-9u; Mon, 01 Aug 2022 09:04:45 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=QsJecBLT9bWoOSO5hDFf0DEE49NwfKMSog2rt2ETlUQ=; b=jtp2zL2ot1JA IDrKy9TyNBNOJ2Oe7UiZnKor7mEpeRc8qM7tvUftuALwM6lJvE9JgfbZb7XgG7H4WPioWOAcFId1J HaNWHQMwuararFbzWlNUzDsv3XVh9ToeKxqHsGbDA27kvALtZByrSoHReDcw8a6We7xzH1A4ihbu2 IkePZvLlvDHYh8V6odwmUBLrTewFpuSDpebA/kQuMwF+/swxWsIX3odsgP9wm/DCfByG9CFGn7oav snRtZvMoeXeOke10VNbl1UcFS1gpO5PQ25s90lWbI6TYrQOmKfOxeLfiaDVRjLmNSgI4RIz/W3VMy M/d6F0RHYv9nQF5HHm4fJg==; Original-Received: from [87.69.77.57] (port=1805 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 1oIV6C-00033T-OA; Mon, 01 Aug 2022 09:04:45 -0400 In-Reply-To: (message from Gregory Heytings on Mon, 01 Aug 2022 12:20:39 +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:238426 Archived-At: > Date: Mon, 01 Aug 2022 12:20:39 +0000 > From: Gregory Heytings > cc: dgutov@yandex.ru, 56682@debbugs.gnu.org, monnier@iro.umontreal.ca > > > Having to wait for the initial display is pretty annoying. > > It is, indeed. But here we are talking about big files (say 1 GB). In > that case (and in that case only) it is much better, from a user > viewpoint, to wait say 20 seconds before the file is opened and being at > that point able to freely move through the file, instead of waiting only 6 > seconds, and then having to wait another 10 seconds between two motion > commands like M-> C-p. In fact, no user expects that a 1 GB file would > open instantaneously. You can maybe have that for C-p that follows M->, but wouldn't the wait return, with a vengeance, if you insert a single character (because then the buffer needs to be re-scanned)? If so, we've gained nothing, really.