From unknown Sun Jun 15 08:45:11 2025 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-Mailer: MIME-tools 5.509 (Entity 5.509) Content-Type: text/plain; charset=utf-8 From: bug#13675 <13675@debbugs.gnu.org> To: bug#13675 <13675@debbugs.gnu.org> Subject: Status: 24.2.93; Extremely slow redisplay when lines are very long Reply-To: bug#13675 <13675@debbugs.gnu.org> Date: Sun, 15 Jun 2025 15:45:11 +0000 retitle 13675 24.2.93; Extremely slow redisplay when lines are very long reassign 13675 emacs submitter 13675 Eli Zaretskii severity 13675 normal thanks From debbugs-submit-bounces@debbugs.gnu.org Sun Feb 10 11:26:42 2013 Received: (at submit) by debbugs.gnu.org; 10 Feb 2013 16:26:42 +0000 Received: from localhost ([127.0.0.1]:49210 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from ) id 1U4Zjj-0006Yc-Gs for submit@debbugs.gnu.org; Sun, 10 Feb 2013 11:26:40 -0500 Received: from eggs.gnu.org ([208.118.235.92]:51234) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from ) id 1U4Zje-0006YP-8w for submit@debbugs.gnu.org; Sun, 10 Feb 2013 11:26:36 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1U4ZjN-00039B-AC for submit@debbugs.gnu.org; Sun, 10 Feb 2013 11:26:19 -0500 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on eggs.gnu.org X-Spam-Level: X-Spam-Status: No, score=-101.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_NONE, USER_IN_WHITELIST autolearn=unavailable version=3.3.2 Received: from lists.gnu.org ([208.118.235.17]:48260) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1U4ZjN-000397-6c for submit@debbugs.gnu.org; Sun, 10 Feb 2013 11:26:17 -0500 Received: from eggs.gnu.org ([208.118.235.92]:34344) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1U4ZjK-000699-NK for bug-gnu-emacs@gnu.org; Sun, 10 Feb 2013 11:26:17 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1U4ZjI-00036w-He for bug-gnu-emacs@gnu.org; Sun, 10 Feb 2013 11:26:14 -0500 Received: from mtaout20.012.net.il ([80.179.55.166]:41442) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1U4ZjI-00036U-4J for bug-gnu-emacs@gnu.org; Sun, 10 Feb 2013 11:26:12 -0500 Received: from conversion-daemon.a-mtaout20.012.net.il by a-mtaout20.012.net.il (HyperSendmail v2007.08) id <0MI000400IXMVQ00@a-mtaout20.012.net.il> for bug-gnu-emacs@gnu.org; Sun, 10 Feb 2013 18:26:09 +0200 (IST) Received: from HOME-C4E4A596F7 ([87.69.4.28]) by a-mtaout20.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0MI000427IZLOM60@a-mtaout20.012.net.il> for bug-gnu-emacs@gnu.org; Sun, 10 Feb 2013 18:26:09 +0200 (IST) Date: Sun, 10 Feb 2013 18:26:14 +0200 From: Eli Zaretskii Subject: 24.2.93; Extremely slow redisplay when lines are very long X-012-Sender: halo1@inter.net.il To: bug-gnu-emacs@gnu.org Message-id: <83sj545e55.fsf@gnu.org> X-detected-operating-system: by eggs.gnu.org: Solaris 10 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6.x X-Received-From: 208.118.235.17 X-Spam-Score: -6.9 (------) X-Debbugs-Envelope-To: submit X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.13 Precedence: list Reply-To: Eli Zaretskii List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: debbugs-submit-bounces@debbugs.gnu.org Errors-To: debbugs-submit-bounces@debbugs.gnu.org X-Spam-Score: -6.9 (------) This is a very long-standing deficiency of the Emacs display engine: it is awfully slow in buffers with very long (thousands of characters) lines. Specifically, many simple movement commands, scrolling, or even typing "M-x" can take several seconds(!) to complete. A simple Awk script attached below can be used to generate such files. For the latest discussions of this and some data, see this thread: http://lists.gnu.org/archive/html/emacs-devel/2013-02/msg00135.html The solution for this bug should produce algorithmic changes in the display engine and possibly also supporting changes in data structures that would prevent such a terrible slow-down with long lines. Ideally, redisplay of such buffers should not be much slower than buffers with "normal" line length. Here's a script that can be used to produce test files for this bug: --------------------------------------------- BEGIN { # 500 lines for (i = 1; i <= 500; i++) { # Line length between 10K and 20K characters + newline line_len = 10000 * rand() + 10000; for (j = 1; j <= line_len; j++) { # 15% of punctuation and digit charcaters, the rest letters if (rand() < 0.15) { # Start at SPACE lbase = 32; llen = 33; } else { # Start at 'a' lbase = 97; llen = 26; } printf "%c", llen * rand() + lbase; } printf "\n"; } } --------------------------------------------- In GNU Emacs 24.2.93.1 (i386-mingw-nt5.1.2600) of 2013-02-07 on HOME-C4E4A596F7 Windowing system distributor `Microsoft Corp.', version 5.1.2600 Configured using: `configure --with-gcc (3.4) --cflags -Id:/usr/include/libxml2' Important settings: value of $LANG: ENU locale-coding-system: cp1255 default enable-multibyte-characters: t Major mode: Mail Minor modes in effect: shell-dirtrack-mode: t diff-auto-refine-mode: t flyspell-mode: t desktop-save-mode: t show-paren-mode: t display-time-mode: t tooltip-mode: t mouse-wheel-mode: t tool-bar-mode: t menu-bar-mode: t file-name-shadow-mode: t global-font-lock-mode: t font-lock-mode: t blink-cursor-mode: t auto-composition-mode: t auto-encryption-mode: t auto-compression-mode: t temp-buffer-resize-mode: t line-number-mode: t auto-fill-function: mail-mode-auto-fill abbrev-mode: t Recent input: e t a i l s . C-x C-e T h e SPC r e a s o n SPC f o r SPC t h e SPC d e f a u l t SPC v a l u e SPC i s SPC t o SPC a v o i d SPC t h e SPC a n n o y i n g SPC j u m p s SPC o f SPC t h e SPC m o d e SPC l i n e SPC a u p SPC a n d SPC d o w n M-q SPC w h e n SPC t h e SPC e c h o SPC a r e a SPC d i s p l a y s SPC m e s s a g e s SPC o f SPC d i f f e r e n t SPC l e n g t h . C-c C-s d d d d d d d d d SPC d d o P O d d d d d d d d d d n d SPC d d d SPC d SPC d d d d d C-z C-z C-z C-z C-z C-z C-z C-z d d d d d d SPC SPC d C-x C-s M-x r e p o r t - e m a c s - b u Recent messages: Sending... Added to d:/usr/eli/rmail/SENT.MAIL Sending email Sending email done Sending...done Added to d:/usr/eli/rmail/PORTS.rmail No following nondeleted message Mark set Saving file d:/usr/eli/rmail/INBOX... Wrote d:/usr/eli/rmail/INBOX [2 times] Load-path shadows: None found. Features: (shadow emacsbug cc-awk tar-mode etags texinfo mule-util ebuff-menu electric bug-reference add-log misearch multi-isearch dabbrev time-stamp rmailout network-stream starttls tls mail-extr smtpmail auth-source eieio password-cache shell mailalias sendmail help-mode tcl nxml-uchnm rng-xsd xsd-regexp rng-cmpct rng-nxml rng-valid rng-loc rng-uri rng-parse nxml-parse rng-match rng-dt rng-util rng-pttrn nxml-ns nxml-mode nxml-outln nxml-rap nxml-util nxml-glyph nxml-enc xmltok sgml-mode conf-mode generic arc-mode archive-mode diff-mode dired-x cl-macs gv dired face-remap org-wl org-w3m org-vm org-rmail org-mhe org-mew org-irc org-jsinfo org-infojs org-html org-exp ob-exp org-exp-blocks org-agenda org-info org-gnus gnus-util org-docview org-bibtex bibtex org-bbdb org byte-opt warnings bytecomp byte-compile cconv advice help-fns advice-preload ob-tangle ob-ref ob-lob ob-table org-footnote org-src ob-comint ob-keys org-pcomplete pcomplete org-list org-faces org-entities org-version ob-emacs-lisp ob org-compat org-macs ob-eval org-loaddefs find-func cal-menu calendar cal-loaddefs parse-time vc-cvs gud comint ansi-color ring sh-script smie executable autoconf autoconf-mode make-mode autorevert noutline outline easy-mmode jka-compr info vc-bzr cc-langs cl cl-lib cc-mode cc-fonts cc-guess cc-menus cc-cmds cc-styles cc-align cc-engine cc-vars cc-defs flyspell rmailsum qp rmailmm message format-spec rfc822 mml mml-sec mm-decode mm-bodies mm-encode mailabbrev gmm-utils mailheader mail-parse rfc2231 rmail rfc2047 rfc2045 ietf-drums mm-util mail-prsvr mail-utils desktop server filecache mairix cus-edit easymenu cus-start cus-load wid-edit saveplace midnight ispell generic-x paren battery time time-date tooltip ediff-hook vc-hooks lisp-float-type mwheel dos-w32 ls-lisp w32-common-fns disp-table w32-win w32-vars tool-bar dnd fontset image regexp-opt fringe tabulated-list newcomment lisp-mode register page menu-bar rfn-eshadow timer select scroll-bar mouse jit-lock font-lock syntax facemenu font-core frame cham georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean japanese hebrew greek romanian slovak czech european ethiopic indian cyrillic chinese case-table epa-hook jka-cmpr-hook help simple abbrev minibuffer loaddefs button faces cus-face macroexp files text-properties overlay sha1 md5 base64 format env code-pages mule custom widget hashtable-print-readable backquote make-network-process w32 multi-tty emacs) From debbugs-submit-bounces@debbugs.gnu.org Sun Feb 10 12:36:48 2013 Received: (at 13675) by debbugs.gnu.org; 10 Feb 2013 17:36:48 +0000 Received: from localhost ([127.0.0.1]:49283 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from ) id 1U4apb-0008Em-Ji for submit@debbugs.gnu.org; Sun, 10 Feb 2013 12:36:48 -0500 Received: from mtaout23.012.net.il ([80.179.55.175]:43318) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from ) id 1U4apX-0008EY-Dr for 13675@debbugs.gnu.org; Sun, 10 Feb 2013 12:36:46 -0500 Received: from conversion-daemon.a-mtaout23.012.net.il by a-mtaout23.012.net.il (HyperSendmail v2007.08) id <0MI000200M61X300@a-mtaout23.012.net.il> for 13675@debbugs.gnu.org; Sun, 10 Feb 2013 19:36:25 +0200 (IST) Received: from HOME-C4E4A596F7 ([87.69.4.28]) by a-mtaout23.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0MI0002SYM8OSA60@a-mtaout23.012.net.il>; Sun, 10 Feb 2013 19:36:25 +0200 (IST) Date: Sun, 10 Feb 2013 19:36:30 +0200 From: Eli Zaretskii Subject: Re: bug#13675: 24.2.93; Extremely slow redisplay when lines are very long In-reply-to: <83sj545e55.fsf@gnu.org> X-012-Sender: halo1@inter.net.il To: Eli Zaretskii Message-id: <83pq085aw1.fsf@gnu.org> References: <83sj545e55.fsf@gnu.org> X-Spam-Score: 0.7 (/) X-Debbugs-Envelope-To: 13675 Cc: 13675@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.13 Precedence: list Reply-To: Eli Zaretskii List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: debbugs-submit-bounces@debbugs.gnu.org Errors-To: debbugs-submit-bounces@debbugs.gnu.org X-Spam-Score: 0.2 (/) > Date: Sun, 10 Feb 2013 18:26:14 +0200 > From: Eli Zaretskii > > This is a very long-standing deficiency of the Emacs display engine: > it is awfully slow in buffers with very long (thousands of characters) > lines. Specifically, many simple movement commands, scrolling, or > even typing "M-x" can take several seconds(!) to complete. > > A simple Awk script attached below can be used to generate such files. > > For the latest discussions of this and some data, see this thread: > > http://lists.gnu.org/archive/html/emacs-devel/2013-02/msg00135.html > > The solution for this bug should produce algorithmic changes in the > display engine and possibly also supporting changes in data structures > that would prevent such a terrible slow-down with long lines. > Ideally, redisplay of such buffers should not be much slower than > buffers with "normal" line length. Revision 111724 speeds up some of the redisplay operations by a factor of 3. From debbugs-submit-bounces@debbugs.gnu.org Sun Feb 10 15:44:06 2013 Received: (at control) by debbugs.gnu.org; 10 Feb 2013 20:44:06 +0000 Received: from localhost ([127.0.0.1]:49363 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from ) id 1U4dkr-0004Fy-Nu for submit@debbugs.gnu.org; Sun, 10 Feb 2013 15:44:06 -0500 Received: from fencepost.gnu.org ([208.118.235.10]:34100) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from ) id 1U4dkp-0004Fr-Jf for control@debbugs.gnu.org; Sun, 10 Feb 2013 15:44:04 -0500 Received: from rgm by fencepost.gnu.org with local (Exim 4.71) (envelope-from ) id 1U4dkZ-0005GH-46 for control@debbugs.gnu.org; Sun, 10 Feb 2013 15:43:47 -0500 Date: Sun, 10 Feb 2013 15:43:47 -0500 Message-Id: Subject: control message for bug 3219 To: X-Mailer: mail (GNU Mailutils 2.1) From: Glenn Morris X-Spam-Score: -4.2 (----) X-Debbugs-Envelope-To: control X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: debbugs-submit-bounces@debbugs.gnu.org Errors-To: debbugs-submit-bounces@debbugs.gnu.org X-Spam-Score: -4.2 (----) merge 13675 3219 From debbugs-submit-bounces@debbugs.gnu.org Mon Feb 10 16:28:32 2014 Received: (at control) by debbugs.gnu.org; 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Sat, 24 Sep 2016 07:32:40 -0400 Date: Sat, 24 Sep 2016 14:32:44 +0300 Message-Id: <838tuhcz37.fsf@gnu.org> From: Eli Zaretskii To: Andreas Nilsson In-reply-to: <20160924110901.5482c558@bahnhof.se> (message from Andreas Nilsson on Sat, 24 Sep 2016 11:09:01 +0200) Subject: Re: bug#24523: Base64 images makes Emacs slow References: <20160924073739.59fca4e0@bahnhof.se> <83h995dbzu.fsf@gnu.org> <20160924110901.5482c558@bahnhof.se> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 2001:4830:134:3::e X-Spam-Score: -8.1 (--------) X-Debbugs-Envelope-To: control Cc: 24523@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Eli Zaretskii Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -8.1 (--------) merge 24523 13675 thanks > Date: Sat, 24 Sep 2016 11:09:01 +0200 > From: Andreas Nilsson > Cc: 24523@debbugs.gnu.org > > 1. emacs -Q > 2. Visit https://www.base64-image.de/ and "click here" select an image > (I selected a ~200kB one) > 3. Click "show code" and copy paste the string you get into *scratch*. > 4. Now try C-v and M-v as well as type some characters, this is the > point where it lags. This creates a single physical line whose length is 280K characters. It is a known limitation of the Emacs display engine that it's very slow with such long lines. See bug #13675. From debbugs-submit-bounces@debbugs.gnu.org Thu Oct 19 21:45:11 2017 Received: (at 13675) by debbugs.gnu.org; 20 Oct 2017 01:45:11 +0000 Received: from localhost ([127.0.0.1]:50901 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1e5MN4-0000gJ-S9 for submit@debbugs.gnu.org; Thu, 19 Oct 2017 21:45:11 -0400 Received: from mail-pf0-f179.google.com ([209.85.192.179]:51766) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1e5MN3-0000g7-Ek for 13675@debbugs.gnu.org; Thu, 19 Oct 2017 21:45:09 -0400 Received: by mail-pf0-f179.google.com with SMTP id n14so8674012pfh.8 for <13675@debbugs.gnu.org>; Thu, 19 Oct 2017 18:45:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=soe-ucsc-edu.20150623.gappssmtp.com; s=20150623; h=from:mime-version:content-transfer-encoding:message-id:date:to :subject; bh=50XnbAupFbqw6zuJUkR58mNjkSecQt2G+90hGkuw8nM=; b=al1qpc69p5ajXMBj6cMfIE032Rp4GBHYuwOv6T9U4JPRcFoIAdTvUbatOqiv5cSk0g 2cEZDFX4V/wNO/JODXR3tM/8UoWC7Fj3uDfU54VTbTOW1KJBn2fxHbZW9LPXXbf1Sy0J 1cfW+ckSyR/EQoYXadlGHZeswDuMRdxqmAYF39suu5AOf/2ompcWZX7zdCP+mGHU2xhT 5kQrLInVES+cEBLKOli9WepO37Lbmxix9WVb59JekSWGonFjh7VL+0han5nxuiqpwIti iAM2r7E3Bxriir/TUFji171FB7fBrqmLwnEQreUVRTszFOmQOko/YVSGHPxc1bhweOlN ciKg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:mime-version:content-transfer-encoding :message-id:date:to:subject; bh=50XnbAupFbqw6zuJUkR58mNjkSecQt2G+90hGkuw8nM=; b=sEseIJwJbj0qaeeGw6bg9UeL/n+MFJGPJIrp+YmCzvw4UlJL81tgaBQB1QXq1ndfsu wZh+nSdpKJkF5PdlV+K0dlllUclXRs/sRpz3FulWtlMIloAP9faIlTHXgtayLLPJgpGy 7HVMcwqD+FcoUwPVQru8EdI/MZVWhK5Qc8Oi6fdXLmX93eDYAFXFETdixlI0ZApu9Pz/ iR7QwN6Vd6MB9VV/9J/yt3dWfZNDz0KtUeScmo7l+DPs5nlUnMiWCrVOVuY9c8JMcRnA bAo2HogOs5SeDuccECUb+qrbfuqx2IGyL/ma2Oy6uhBvc0nMQcnlShgh8fB1mGwMd0v1 hojg== X-Gm-Message-State: AMCzsaW1QawQxMy2BlYz99zmtZMhqnUfORphBf/EmTvasGqM8LjbU8gd JZ0EbDfWM4Mn1MN1UH2Vxv2o7Z5i X-Google-Smtp-Source: ABhQp+Qa8L2jzfI8oZQLBNzRPDF61xhjLYN1JU69mzaE0G94/py0RDXQ+04c5pp8dTy84s79M49OPQ== X-Received: by 10.101.74.4 with SMTP id s4mr2916469pgq.259.1508463902703; Thu, 19 Oct 2017 18:45:02 -0700 (PDT) Received: from localhost (eduroam-169-233-201-230.ucsc.edu. [169.233.201.230]) by smtp.gmail.com with ESMTPSA id h1sm26308948pgf.54.2017.10.19.18.45.01 for <13675@debbugs.gnu.org> (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Thu, 19 Oct 2017 18:45:01 -0700 (PDT) From: Mark Diekhans MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <23017.21788.768005.940877@eduroam-169-233-201-230.ucsc.edu> Date: Thu, 19 Oct 2017 18:45:00 -0700 To: 13675@debbugs.gnu.org Subject: re: Extremely slow redisplay when lines are very long X-Mailer: VM 8.2.0b under 25.2.1 (x86_64-apple-darwin16.4.0) X-Spam-Score: -2.8 (--) X-Debbugs-Envelope-To: 13675 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -2.8 (--) Is there anyone working on the long-line display speed issue? It is especially bad with font lock mode. SIGUSR2 doesn't help. Twice in the last week I have had to kill emacs because it had been locked up for more than 10 minutes. If the fix is really complex, it would be much better emacs refuse to display the file than force killing it. thanks!! From debbugs-submit-bounces@debbugs.gnu.org Fri Oct 20 02:44:52 2017 Received: (at 13675) by debbugs.gnu.org; 20 Oct 2017 06:44:52 +0000 Received: from localhost ([127.0.0.1]:51004 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1e5R36-0008Ny-Jt for submit@debbugs.gnu.org; Fri, 20 Oct 2017 02:44:52 -0400 Received: from eggs.gnu.org ([208.118.235.92]:35642) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1e5R34-0008Nl-IL for 13675@debbugs.gnu.org; Fri, 20 Oct 2017 02:44:51 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1e5R2u-0005TP-Fe for 13675@debbugs.gnu.org; Fri, 20 Oct 2017 02:44:45 -0400 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on eggs.gnu.org X-Spam-Level: X-Spam-Status: No, score=-0.0 required=5.0 tests=BAYES_20,RP_MATCHES_RCVD autolearn=disabled version=3.3.2 Received: from fencepost.gnu.org ([2001:4830:134:3::e]:47720) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1e5R2u-0005TI-By; Fri, 20 Oct 2017 02:44:40 -0400 Received: from [176.228.60.248] (port=1810 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1e5R2t-0000Vr-Pw; Fri, 20 Oct 2017 02:44:40 -0400 Date: Fri, 20 Oct 2017 09:44:30 +0300 Message-Id: <831slye2sx.fsf@gnu.org> From: Eli Zaretskii To: Mark Diekhans In-reply-to: <23017.21788.768005.940877@eduroam-169-233-201-230.ucsc.edu> (message from Mark Diekhans on Thu, 19 Oct 2017 18:45:00 -0700) Subject: Re: bug#13675: Extremely slow redisplay when lines are very long References: <83sj545e55.fsf@gnu.org> <23017.21788.768005.940877@eduroam-169-233-201-230.ucsc.edu> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 2001:4830:134:3::e X-Spam-Score: -5.0 (-----) X-Debbugs-Envelope-To: 13675 Cc: 13675@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Eli Zaretskii Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -5.0 (-----) > From: Mark Diekhans > Date: Thu, 19 Oct 2017 18:45:00 -0700 > > Is there anyone working on the long-line display speed issue? Not that I know of. I don't even have an idea for how to speed it up, and I don't think anyone's come up with such ideas. > It is especially bad with font lock mode. What mode/kind of file needs font lock and has such long lines? In general, if you must handle such files, my advice is to use M-x find-file-literally for them, it might make Emacs just barely bearable, if you are lucky. But then you lose any font locking and text encoding support, so this is only feasible for plain-ASCII files that basically present some text. > If the fix is really complex, it would be much better emacs > refuse to display the file than force killing it. Patches for presenting a warning for such files, like we do with very large files, are welcome. From debbugs-submit-bounces@debbugs.gnu.org Fri Oct 20 07:58:02 2017 Received: (at 13675) by debbugs.gnu.org; 20 Oct 2017 11:58:03 +0000 Received: from localhost ([127.0.0.1]:51210 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1e5VwA-0001SN-4j for submit@debbugs.gnu.org; Fri, 20 Oct 2017 07:58:02 -0400 Received: from smtp-4.orcon.net.nz ([60.234.4.59]:53859) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1e5Vw7-0001SA-UA for 13675@debbugs.gnu.org; Fri, 20 Oct 2017 07:58:00 -0400 Received: from [150.107.172.80] (port=27474 helo=[192.168.20.102]) by smtp-4.orcon.net.nz with esmtpa (Exim 4.86_2) (envelope-from ) id 1e5Vvs-0006iX-7Z; Sat, 21 Oct 2017 00:57:54 +1300 Subject: Re: bug#13675: Extremely slow redisplay when lines are very long To: Eli Zaretskii , Mark Diekhans References: <83sj545e55.fsf@gnu.org> <23017.21788.768005.940877@eduroam-169-233-201-230.ucsc.edu> <831slye2sx.fsf@gnu.org> From: Phil Sainty Message-ID: <1d241e49-61bc-089c-ce02-2075a4e98905@orcon.net.nz> Date: Sat, 21 Oct 2017 00:57:43 +1300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.4.0 MIME-Version: 1.0 In-Reply-To: <831slye2sx.fsf@gnu.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-GB Content-Transfer-Encoding: 7bit X-GeoIP: NZ X-Spam_score: -2.9 X-Spam_score_int: -28 X-Spam_bar: -- X-Spam-Score: -0.7 (/) X-Debbugs-Envelope-To: 13675 Cc: 13675@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -0.7 (/) On 20/10/17 19:44, Eli Zaretskii wrote: > What mode/kind of file needs font lock and has such long lines? The common cases I would run into were with 'minified' files of programming code, where as much whitespace as possible has been removed to reduce the file size. e.g. Things like https://code.jquery.com/jquery-git.min.js That kind of file is not intended to be edited by hand, but so far as Emacs is concerned it's just a regular javascript file, and therefore font-lock and all the other modes which would be enabled for editing javascript will be used. > Patches for presenting a warning for such files, like we do with > very large files, are welcome. FWIW I wrote https://savannah.nongnu.org/projects/so-long which tries to avoid performance issues in buffers with unexpectedly long lines by automatically changing the major mode and disabling various minor modes for that buffer (based on a pre-configured list). It can only address certain classes of problem, mind, and it needs some more work (and has been waiting for me to get back to it); but it more or less does what it's intended to do, so others might find it useful as-is (I certainly use it myself). See https://www.emacswiki.org/emacs/SoLong for more information. -Phil From debbugs-submit-bounces@debbugs.gnu.org Fri Oct 20 11:50:32 2017 Received: (at 13675) by debbugs.gnu.org; 20 Oct 2017 15:50:32 +0000 Received: from localhost ([127.0.0.1]:52545 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1e5ZZA-0007jy-Ed for submit@debbugs.gnu.org; Fri, 20 Oct 2017 11:50:32 -0400 Received: from mail-pf0-f175.google.com ([209.85.192.175]:51880) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1e5ZZ8-0007ji-Jm for 13675@debbugs.gnu.org; Fri, 20 Oct 2017 11:50:31 -0400 Received: by mail-pf0-f175.google.com with SMTP id n14so11611739pfh.8 for <13675@debbugs.gnu.org>; Fri, 20 Oct 2017 08:50:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=soe-ucsc-edu.20150623.gappssmtp.com; s=20150623; h=mime-version:content-transfer-encoding:message-id:date:to:cc :subject:in-reply-to:references:from; bh=+QRmbp6j8djtkIYwkkDinYs0fMbwOsnAlu/Qo4ZdH2E=; b=nmcb70LIv9AHrw+38kbdTFrWU+BeG5h43HhcpCSZMOgYuJGg0aRm8vWJ/t6UKpbsRJ P0LwO1IOKymKNAIsVO/D4nT9ruYlPwRKLPDQAc0DKWHaarK+4vOrrkegXFTqGsZ3yfCq 8oQTv5pDOnUA0+b7cKXXLIEFGh/yzFdwOI5fCT5WYtI5rn0s7Vs3yTu5w4+kfkmqc/T3 3EgvjG4s+QC4403MZxPU9pRgbKSEIctd1vwKn0b9yg4+FLcUevxJPBgfjGnCKqZwy7t2 18tfVGvHqSW/63RKV+w0Y06Dcsst5bYZJ9ldiMfnPFo2C/5nja+L/clbe/gCCCB7QzeR Kahg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:content-transfer-encoding :message-id:date:to:cc:subject:in-reply-to:references:from; bh=+QRmbp6j8djtkIYwkkDinYs0fMbwOsnAlu/Qo4ZdH2E=; b=BnC1eyFatnsocGdEwKzg3/muK/0kcWlAhAMgAiwvcB5fEVnx4NLkKVcvbvic65J/94 hAISzocOQ75SL7bZclLLrgq8OxuAJyWHZa2SM3RBtu8YiY74hgmYvueMjK6kHA7Cht9c huWUlQnjwaNx70uhuTs9V0Fj9xLfDervN9zp4ekZjLlpllA97ZHTOB4mbs+Wk72Bx3mp kyFFp4cYgubI/5g/zKJXbap+iOd+r69Y+fuYelMKESt9S/lAjjBoxr/JNfcJLg7jjNMM P/yBUqvurwM2iBjfB1tSu+4BXFYxYAuYEexM+vtanpEZQibtEFgb5ACYggxY9Ms6YLkN 2FVg== X-Gm-Message-State: AMCzsaX5pM44V+JBDEKYte+2qU3Hnyflcjpv0bJ++JBn8I+yhObq9KU8 6vL3jCdhed6Hjq/EBNdo66UXAQ== X-Google-Smtp-Source: ABhQp+R2SGbkdyw4azK8kdvR55MfSZ6em9MWFclYMsfWplkZaml3xPx25RQ/zkn/TNyFWDXswWxvXQ== X-Received: by 10.84.128.97 with SMTP id 88mr703038pla.161.1508514624442; Fri, 20 Oct 2017 08:50:24 -0700 (PDT) Received: from localhost ([2601:647:c803:2f30:420:ec7a:c1cb:371f]) by smtp.gmail.com with ESMTPSA id l1sm2220379pff.77.2017.10.20.08.50.20 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Fri, 20 Oct 2017 08:50:22 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <23018.6971.899464.78569@kestrel.local> Date: Fri, 20 Oct 2017 08:50:19 -0700 To: Eli Zaretskii Subject: Re: bug#13675: Extremely slow redisplay when lines are very long In-Reply-To: <831slye2sx.fsf@gnu.org> References: <83sj545e55.fsf@gnu.org> <23017.21788.768005.940877@eduroam-169-233-201-230.ucsc.edu> <831slye2sx.fsf@gnu.org> X-Mailer: VM 8.2.0b under 25.2.1 (x86_64-apple-darwin16.4.0) From: Mark Diekhans BCC: Mark Diekhans , X-Spam-Score: -2.8 (--) X-Debbugs-Envelope-To: 13675 Cc: 13675@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -2.8 (--) Hi Eli, The issue really isn't needed to edit these kind of files, so much as not locking up emacs when one doesn't know a file has really long lines. In the past week, it's been an sql file that had long insert commands and a large json file create without line breaks. Both of these modes have font lock mode by default. I would be gladly work on a patch to ask a question or stop on files that might cripple emacs. However, before one dives into work, it's important to know the history and if there is existing work one can help with as opposed to start fresh. That leads to annoying questions like mine. The meta issue is not a user wanting something for nothing. It's that it's a lot of work for someone who is not a core developer to come up to speed on an issue since the discussions are not linked to bug reports and the mailing lists are very hard to search. Mark Eli Zaretskii writes: > > From: Mark Diekhans > > Date: Thu, 19 Oct 2017 18:45:00 -0700 > > > > Is there anyone working on the long-line display speed issue? > > Not that I know of. I don't even have an idea for how to speed it up, > and I don't think anyone's come up with such ideas. > > > It is especially bad with font lock mode. > > What mode/kind of file needs font lock and has such long lines? > > In general, if you must handle such files, my advice is to use M-x > find-file-literally for them, it might make Emacs just barely > bearable, if you are lucky. But then you lose any font locking and > text encoding support, so this is only feasible for plain-ASCII files > that basically present some text. > > > If the fix is really complex, it would be much better emacs > > refuse to display the file than force killing it. > > Patches for presenting a warning for such files, like we do with very > large files, are welcome. From debbugs-submit-bounces@debbugs.gnu.org Fri Oct 20 12:10:51 2017 Received: (at 13675) by debbugs.gnu.org; 20 Oct 2017 16:10:51 +0000 Received: from localhost ([127.0.0.1]:52616 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1e5Zsp-0008MU-AH for submit@debbugs.gnu.org; Fri, 20 Oct 2017 12:10:51 -0400 Received: from eggs.gnu.org ([208.118.235.92]:56978) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1e5Zsn-0008MF-Px for 13675@debbugs.gnu.org; Fri, 20 Oct 2017 12:10:50 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1e5Zse-00014H-Nh for 13675@debbugs.gnu.org; Fri, 20 Oct 2017 12:10:44 -0400 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on eggs.gnu.org X-Spam-Level: X-Spam-Status: No, score=-0.5 required=5.0 tests=BAYES_05,RP_MATCHES_RCVD autolearn=disabled version=3.3.2 Received: from fencepost.gnu.org ([2001:4830:134:3::e]:37905) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1e5Zse-00014C-Jh; Fri, 20 Oct 2017 12:10:40 -0400 Received: from [176.228.60.248] (port=2910 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1e5Zse-0004tM-1n; Fri, 20 Oct 2017 12:10:40 -0400 Date: Fri, 20 Oct 2017 19:10:32 +0300 Message-Id: <83bml1dclj.fsf@gnu.org> From: Eli Zaretskii To: Mark Diekhans In-reply-to: <23018.6971.899464.78569@kestrel.local> (message from Mark Diekhans on Fri, 20 Oct 2017 08:50:19 -0700) Subject: Re: bug#13675: Extremely slow redisplay when lines are very long References: <83sj545e55.fsf@gnu.org> <23017.21788.768005.940877@eduroam-169-233-201-230.ucsc.edu> <831slye2sx.fsf@gnu.org> <23018.6971.899464.78569@kestrel.local> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 2001:4830:134:3::e X-Spam-Score: -5.0 (-----) X-Debbugs-Envelope-To: 13675 Cc: 13675@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Eli Zaretskii Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -5.0 (-----) > Date: Fri, 20 Oct 2017 08:50:19 -0700 > Cc: 13675@debbugs.gnu.org > From: Mark Diekhans > > I would be gladly work on a patch to ask a question or stop on > files that might cripple emacs. > > However, before one dives into work, it's important to know the > history and if there is existing work one can help with as opposed > to start fresh. That leads to annoying questions like mine. > > The meta issue is not a user wanting something for nothing. > It's that it's a lot of work for someone who is not a core > developer to come up to speed on an issue since the discussions > are not linked to bug reports and the mailing lists are very > hard to search. I don't think you have anything to fear, because AFAIR this particular approach was never suggested or discussed. So I'd start with a feature that read the first N bytes from the file, and if no newlines were found in those N bytes, pop up the warning and the question. A good place for this would be inside insert-file-contents, which is where Emacs reads files into memory. Let me know if I can help you further with making this happen. Thanks. From debbugs-submit-bounces@debbugs.gnu.org Fri Oct 20 22:03:42 2017 Received: (at 13675) by debbugs.gnu.org; 21 Oct 2017 02:03:42 +0000 Received: from localhost ([127.0.0.1]:52943 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1e5j8Y-0004RG-BN for submit@debbugs.gnu.org; Fri, 20 Oct 2017 22:03:42 -0400 Received: from smtp-2.orcon.net.nz ([60.234.4.43]:50642) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1e5j8V-0004R6-J1 for 13675@debbugs.gnu.org; Fri, 20 Oct 2017 22:03:40 -0400 Received: from [150.107.172.27] (port=27777 helo=[192.168.20.102]) by smtp-2.orcon.net.nz with esmtpa (Exim 4.86_2) (envelope-from ) id 1e5j8K-0005FL-NU; Sat, 21 Oct 2017 15:03:33 +1300 Subject: Re: bug#13675: Extremely slow redisplay when lines are very long From: Phil Sainty To: Eli Zaretskii , Mark Diekhans References: <83sj545e55.fsf@gnu.org> <23017.21788.768005.940877@eduroam-169-233-201-230.ucsc.edu> <831slye2sx.fsf@gnu.org> <1d241e49-61bc-089c-ce02-2075a4e98905@orcon.net.nz> Message-ID: <21c26b38-0d14-3600-a80d-ddd95f41cc09@orcon.net.nz> Date: Sat, 21 Oct 2017 15:03:28 +1300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.4.0 MIME-Version: 1.0 In-Reply-To: <1d241e49-61bc-089c-ce02-2075a4e98905@orcon.net.nz> Content-Type: text/plain; charset=utf-8 Content-Language: en-GB Content-Transfer-Encoding: 7bit X-GeoIP: NZ X-Spam_score: -2.9 X-Spam_score_int: -28 X-Spam_bar: -- X-Spam-Score: -0.7 (/) X-Debbugs-Envelope-To: 13675 Cc: 13675@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -0.7 (/) On 21/10/17 00:57, Phil Sainty wrote: > FWIW I wrote https://savannah.nongnu.org/projects/so-long which > tries to avoid performance issues in buffers with unexpectedly > long lines by automatically changing the major mode and disabling > various minor modes for that buffer I wrote a more detailed overview at: https://lists.gnu.org/archive/html/emacs-devel/2016-07/msg00742.html That was preparation for adding so-long.el to GNU ELPA -- before I came to the realisation that the scenarios which affected me had all been caused by third-party libraries, and that the most notable issue had already been fixed upstream by the library's author. At this point I worried that I was severely over-stating the benefits of my code, as I no longer had a good example of my library improving things by a significant margin, and in particular could not find a scenario using only default Emacs libraries. I think this was the main reason why I didn't proceed with adding so-long to ELPA at the time. I do think it might still be worth adding to ELPA, but a good example of it being useful would be really helpful. As such, if anyone is reading this, tries out so-long.el, and finds that it does indeed help them (with or without configuration), please drop me a line with some details? thanks, -Phil From debbugs-submit-bounces@debbugs.gnu.org Wed Feb 14 14:55:32 2018 Received: (at control) by debbugs.gnu.org; 14 Feb 2018 19:55:32 +0000 Received: from localhost ([127.0.0.1]:43207 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1em39Q-00062x-5u for submit@debbugs.gnu.org; Wed, 14 Feb 2018 14:55:32 -0500 Received: from eggs.gnu.org ([208.118.235.92]:35991) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1em39O-00062k-4g for control@debbugs.gnu.org; Wed, 14 Feb 2018 14:55:30 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1em39I-0003xm-Af for control@debbugs.gnu.org; Wed, 14 Feb 2018 14:55:25 -0500 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on eggs.gnu.org X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,T_RP_MATCHES_RCVD autolearn=disabled version=3.3.2 Received: from fencepost.gnu.org ([2001:4830:134:3::e]:43655) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1em39I-0003xY-3u for control@debbugs.gnu.org; Wed, 14 Feb 2018 14:55:24 -0500 Received: from rgm by fencepost.gnu.org with local (Exim 4.82) (envelope-from ) id 1em39H-00059S-SU for control@debbugs.gnu.org; Wed, 14 Feb 2018 14:55:23 -0500 Subject: control message for bug 30457 To: X-Mailer: mail (GNU Mailutils 2.99.98) Message-Id: From: Glenn Morris Date: Wed, 14 Feb 2018 14:55:23 -0500 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 2001:4830:134:3::e X-Spam-Score: -5.0 (-----) X-Debbugs-Envelope-To: control X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -5.0 (-----) merge 15555 30457 From debbugs-submit-bounces@debbugs.gnu.org Tue Mar 10 10:40:19 2020 Received: (at control) by debbugs.gnu.org; 10 Mar 2020 14:40:19 +0000 Received: from localhost ([127.0.0.1]:53052 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jBg3O-0007um-Ty for submit@debbugs.gnu.org; Tue, 10 Mar 2020 10:40:19 -0400 Received: from eggs.gnu.org ([209.51.188.92]:57342) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jBg3N-0007uW-CY; Tue, 10 Mar 2020 10:40:17 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:36981) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1jBg3I-0002Hs-2m; Tue, 10 Mar 2020 10:40:12 -0400 Received: from [176.228.60.248] (port=1144 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1jBg3H-0006JF-DX; Tue, 10 Mar 2020 10:40:11 -0400 Date: Tue, 10 Mar 2020 16:40:12 +0200 Message-Id: <831rq0b7eb.fsf@gnu.org> From: Eli Zaretskii To: Jan Synacek In-Reply-To: (message from Jan Synacek on Tue, 10 Mar 2020 10:48:24 +0100) Subject: Re: bug#40007: 28.0.50; Emacs gets very slow when displaying a long line References: X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Spam-Score: -0.7 (/) X-Debbugs-Envelope-To: control Cc: 40007@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -1.7 (-) merge 40007 13675 thanks > From: Jan Synacek > Date: Tue, 10 Mar 2020 10:48:24 +0100 > > > 1) emacs -Q > 2) M-x shell > 3) execute a program that displays a single line, about ~193000 > characters long > > I accidentaly wrote a scheme program that dumped an entire file as a > single line, about 193k characters long, into the shell buffer. Emacs' > reponse latency becomes *very* slow, especially when navigating the > point over the long line. This is bug#13675 (and others that were merged with it). We now have so-long-mode to alleviate some of the problems. 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Content preview: severity 22143 normal merge 13675 22143 thanks Content analysis details: (2.5 points, 10.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (stefankangas[at]gmail.com) -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [209.85.219.178 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.2 HEADER_FROM_DIFFERENT_DOMAINS From and EnvelopeFrom 2nd level mail domains are different 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 RCVD_IN_MSPIKE_H2 RBL: Average reputation (+2) [209.85.219.178 listed in wl.mailspike.net] 0.2 FREEMAIL_FORGED_FROMDOMAIN 2nd level domains in From and EnvelopeFrom freemail headers are different 2.0 BLANK_SUBJECT Subject is present but empty 0.0 UNPARSEABLE_RELAY Informational: message has unparseable relay lines X-Debbugs-Envelope-To: control X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: 1.5 (+) X-Spam-Report: Spam detection software, running on the system "debbugs.gnu.org", has NOT identified this incoming email as spam. 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Content preview: severity 22143 normal merge 13675 22143 thanks Content analysis details: (1.5 points, 10.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_MSPIKE_H2 RBL: Average reputation (+2) [209.85.219.178 listed in wl.mailspike.net] -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [209.85.219.178 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (stefankangas[at]gmail.com) -0.0 SPF_PASS SPF: sender matches SPF record 0.2 HEADER_FROM_DIFFERENT_DOMAINS From and EnvelopeFrom 2nd level mail domains are different 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 0.2 FREEMAIL_FORGED_FROMDOMAIN 2nd level domains in From and EnvelopeFrom freemail headers are different 2.0 BLANK_SUBJECT Subject is present but empty -1.0 MAILING_LIST_MULTI Multiple indicators imply a widely-seen list manager 0.0 UNPARSEABLE_RELAY Informational: message has unparseable relay lines severity 22143 normal merge 13675 22143 thanks From debbugs-submit-bounces@debbugs.gnu.org Sat Jul 23 04:59:21 2022 Received: (at control) by debbugs.gnu.org; 23 Jul 2022 08:59:21 +0000 Received: from localhost ([127.0.0.1]:43440 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oFAym-0002AM-Vv for submit@debbugs.gnu.org; Sat, 23 Jul 2022 04:59:21 -0400 Received: from quimby.gnus.org ([95.216.78.240]:49244) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oFAyl-0002A7-My for control@debbugs.gnu.org; Sat, 23 Jul 2022 04:59:20 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnus.org; s=20200322; h=Subject:From:To:Message-Id:Date:Sender:Reply-To:Cc: MIME-Version:Content-Type:Content-Transfer-Encoding:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:In-Reply-To:References:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=ZOx7Or2+rJP/3U1mbA613hdzQoIuBCaxaSR0wzztDYo=; b=TvSFuQGmBnIZFLC5hrnyBpbKew KxSTZ4bKgdNagP4ifRZ5WDMNpXTRFbQHB/xYij+kk6DbSJq/H92szpaQDDrixujkYMvHvfbz00rBM +fumZNM2Z+l1I0Madiv/J93c94FN5KfQ3WuoVCqFBIUk/8Q2iQoYKtbXkL6iVo2xBW2w=; Received: from [84.212.220.105] (helo=joga) by quimby.gnus.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1oFAyd-0000g5-U0 for control@debbugs.gnu.org; Sat, 23 Jul 2022 10:59:13 +0200 Date: Sat, 23 Jul 2022 10:59:08 +0200 Message-Id: <87mtd0tdb7.fsf@gnus.org> To: control@debbugs.gnu.org From: Lars Ingebrigtsen Subject: control message for bug #40007 X-Spam-Report: Spam detection software, running on the system "quimby.gnus.org", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see @@CONTACT_ADDRESS@@ for details. Content preview: close 40007 29.1 quit Content analysis details: (-2.9 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -1.0 ALL_TRUSTED Passed through trusted hosts only via SMTP -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: control X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -3.3 (---) close 40007 29.1 quit From unknown Sun Jun 15 08:45:11 2025 Received: (at fakecontrol) by fakecontrolmessage; To: internal_control@debbugs.gnu.org From: Debbugs Internal Request Subject: Internal Control Message-Id: bug archived. Date: Sat, 20 Aug 2022 11:24:05 +0000 User-Agent: Fakemail v42.6.9 # This is a fake control message. # # The action: # bug archived. thanks # This fakemail brought to you by your local debbugs # administrator