From unknown Thu Aug 14 21:22:23 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#23457 <23457@debbugs.gnu.org> To: bug#23457 <23457@debbugs.gnu.org> Subject: Status: 24.5; interactive use of next-line and previous-line (holding down C-n or C-p) lag in a buffer with all spaces and newlines Reply-To: bug#23457 <23457@debbugs.gnu.org> Date: Fri, 15 Aug 2025 04:22:23 +0000 retitle 23457 24.5; interactive use of next-line and previous-line (holding= down C-n or C-p) lag in a buffer with all spaces and newlines reassign 23457 emacs submitter 23457 jamezmcclain@gmail.com severity 23457 minor tag 23457 wontfix thanks From debbugs-submit-bounces@debbugs.gnu.org Thu May 05 05:02:55 2016 Received: (at submit) by debbugs.gnu.org; 5 May 2016 09:02:55 +0000 Received: from localhost ([127.0.0.1]:38713 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ayFBP-0001TR-1m for submit@debbugs.gnu.org; Thu, 05 May 2016 05:02:55 -0400 Received: from eggs.gnu.org ([208.118.235.92]:60560) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ayFBN-0001TF-Mg for submit@debbugs.gnu.org; Thu, 05 May 2016 05:02:54 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ayFB8-0000yT-OP for submit@debbugs.gnu.org; Thu, 05 May 2016 05:02:45 -0400 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on eggs.gnu.org X-Spam-Level: X-Spam-Status: No, score=0.8 required=5.0 tests=BAYES_50,FREEMAIL_FROM, HK_RANDOM_ENVFROM,T_DKIM_INVALID autolearn=disabled version=3.3.2 Received: from lists.gnu.org ([2001:4830:134:3::11]:53422) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ayFB7-0000xQ-JB for submit@debbugs.gnu.org; Thu, 05 May 2016 05:02:38 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:51452) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ayFAv-0003Vl-G1 for bug-gnu-emacs@gnu.org; Thu, 05 May 2016 05:02:32 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ayFAh-0000st-6k for bug-gnu-emacs@gnu.org; Thu, 05 May 2016 05:02:17 -0400 Received: from mail-pf0-x233.google.com ([2607:f8b0:400e:c00::233]:33852) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ayFAf-0000p1-On for bug-gnu-emacs@gnu.org; Thu, 05 May 2016 05:02:11 -0400 Received: by mail-pf0-x233.google.com with SMTP id y69so35317042pfb.1 for ; Thu, 05 May 2016 02:01:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:subject:date:message-id:mime-version; bh=4FZJbxIwlIip6VvPTQrg0PEEnXuVlZr0/aKIBIfB/r4=; b=shhxqJI+tVX3OIG5ZqYTZoPng25L+7rO7bNuSUa+uu9Fv/u0t9IXvcUAax4JDMQR9S ZLRRxwujaXHHNq+2S1cbBKO9RV+5Uep8/7DHvGyxNETQRZ3u20UIR37dLuX7FZ8/wK8M ifP2rhv+MPiJybMRqOG15ao2VwcpNvHCdLwzvxJGXz5LrXPyI5n3zfkXSexmB38rcPlJ fg1FPAltb7SSmO5Ksyv8hJQxQRfCCNi7epGmLe2QT1ub7zebhQcchtjY7rcQxu6Kj41l dw8eztT12uX2qH5aXxLjl9T2A2xoqXk2pCsi/uFE/955DtROhMl7QLJ6kBdq6QdBUtzy 5BmA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:subject:date:message-id:mime-version; bh=4FZJbxIwlIip6VvPTQrg0PEEnXuVlZr0/aKIBIfB/r4=; b=UdbbekkgV0/OFIljUlR3Gpig8ZMd9X86wA6IH+oCRdZqU1al+F6Lpdg7O2naPCQjGr mJB25qjNczcjBugSkmoZxEQgz5fFlsoW2Tx4kURgVo+qiNhA8qzcyrfvluPUBAceK8yz P4BqVdBtQjrT1Hvc35zYaFR8ctybnIGHiFCwHhtGPKheiI+TBrIpL5QtlNVdlD3PHbEF kC9F6cs0Xp7gWamS8wqV75LU8hIdsnbBJ3PghAE3dBrH9HVWRTKQtlQuiKoK2am+iF47 2WklRRC8HtFNxwob9W+JDfRa43fnOOQ3sZuOW7OuqvifaXWTdcmZWjkQ2ySpFDmUvbpE R3Tw== X-Gm-Message-State: AOPr4FWHz/IVoY0PrVHxBP8mCjWw+je9hzYVVEcabMua/IexT5LuL7320iu4IiKC6Y9Q1g== X-Received: by 10.98.98.69 with SMTP id w66mr8206968pfb.20.1462438910964; Thu, 05 May 2016 02:01:50 -0700 (PDT) Received: from NOTE-REPLACE (c-98-255-0-47.hsd1.ca.comcast.net. [98.255.0.47]) by smtp.gmail.com with ESMTPSA id t14sm11841106pfj.12.2016.05.05.02.01.50 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 05 May 2016 02:01:50 -0700 (PDT) From: jamezmcclain@gmail.com To: bug-gnu-emacs@gnu.org Subject: 24.5; interactive use of next-line and previous-line (holding down C-n or C-p) lag in a buffer with all spaces and newlines Date: Thu, 05 May 2016 02:01:54 -0700 Message-ID: <8637pwubct.fsf@NOTE-REPLACE.i-did-not-set--mail-host-address--so-tickle-me> MIME-Version: 1.0 Content-Type: text/plain X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6.x X-Received-From: 2001:4830:134:3::11 X-Spam-Score: -3.4 (---) X-Debbugs-Envelope-To: submit 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: -3.4 (---) This is pretty minor, but it surprised me. When a buffer is filled with spaces going all the way to the last column without overwrapping. If one tries to navigate by lines using C-n or C-p and holding them down, there is noticable lag. My window-body-width is 115 and window-body-height is 60. Recipe: 1. Open emacs : Emacs -Q 2. Open a blank buffer: C-x b test-2 3. Fill the buffer up with spaces until it would force a linewrap, then use C-j to enter a newline. C-u 115 C-j 4. The buffer should appear blank unless you use whitespace mode, now try holding down C-n or C-p. Emacs will lag. I also tested this in a tty emacs session on linux over ssh, and it seemed the lag was also aparent over there. The lag lasted at most around 5 seconds. If the line has all spaces, one period, then a newline. (So if there is one non-space character it seems) then this lag does not happen. Frankly just curious, James In GNU Emacs 24.5.1 (x86_64-w64-mingw32) of 2015-05-16 on KAEL Windowing system distributor `Microsoft Corp.', version 6.3.9600 Configured using: `configure --prefix=/z/emacs --host=x86_64-w64-mingw32 --target=x86_64-w64-mingw32 --build=x86_64-w64-mingw32 --with-wide-int --with-jpeg --with-xpm --with-png --with-tiff --with-rsvg --with-xml2 --with-gnutls --with-sound=yes --with-file-notification=yes --without-dbus --without-imagemagick 'CFLAGS=-O3 -fomit-frame-pointer -g0 -pipe' 'LDFLAGS=-static-libgcc -static-libstdc++ -static -s -Wl,-s'' Important settings: value of $LANG: ENU locale-coding-system: cp1252 Major mode: Fundamental Minor modes in effect: erc-list-mode: t erc-menu-mode: t erc-autojoin-mode: t erc-ring-mode: t erc-networks-mode: t erc-pcomplete-mode: t erc-track-mode: t erc-track-minor-mode: t erc-match-mode: t erc-button-mode: t erc-fill-mode: t erc-stamp-mode: t erc-netsplit-mode: t erc-irccontrols-mode: t erc-noncommands-mode: t erc-move-to-prompt-mode: t erc-readonly-mode: t tooltip-mode: t electric-indent-mode: t mouse-wheel-mode: t tool-bar-mode: t menu-bar-mode: t file-name-shadow-mode: t global-font-lock-mode: t blink-cursor-mode: t auto-composition-mode: t auto-encryption-mode: t auto-compression-mode: t line-number-mode: t transient-mark-mode: t Recent messages: Checking 57 files in c:/ProgramData/chocolatey/lib/emacs64/tools/emacs/share/emacs/24.5/lisp/eshell... Checking 70 files in c:/ProgramData/chocolatey/lib/emacs64/tools/emacs/share/emacs/24.5/lisp/erc... Checking 34 files in c:/ProgramData/chocolatey/lib/emacs64/tools/emacs/share/emacs/24.5/lisp/emulation... Checking 151 files in c:/ProgramData/chocolatey/lib/emacs64/tools/emacs/share/emacs/24.5/lisp/emacs-lisp... Checking 24 files in c:/ProgramData/chocolatey/lib/emacs64/tools/emacs/share/emacs/24.5/lisp/cedet... Checking 57 files in c:/ProgramData/chocolatey/lib/emacs64/tools/emacs/share/emacs/24.5/lisp/calendar... Checking 87 files in c:/ProgramData/chocolatey/lib/emacs64/tools/emacs/share/emacs/24.5/lisp/calc... Checking 111 files in c:/ProgramData/chocolatey/lib/emacs64/tools/emacs/share/emacs/24.5/lisp/obsolete... Checking for load-path shadows...done Mark set [2 times] Quit Load-path shadows: None found. Features: (shadow sort mail-extr misearch multi-isearch noutline outline easy-mmode view emacsbug message rfc822 mml mml-sec mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums mail-utils eieio-opt speedbar sb-image ezimage dframe find-func help-mode network-stream starttls tls erc-list erc-menu easymenu erc-join erc-ring erc-networks erc-pcomplete pcomplete comint ansi-color ring erc-track erc-match erc-button wid-edit erc-fill erc-stamp erc-netsplit erc-goodies erc erc-backend erc-compat format-spec auth-source eieio byte-opt bytecomp byte-compile cl-extra cl-loaddefs cl-lib cconv eieio-core gnus-util mm-util help-fns mail-prsvr password-cache thingatpt pp kmacro whitespace time-date tooltip electric uniquify 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 prog-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 nadvice 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 w32notify w32 multi-tty emacs) Memory information: ((conses 16 133688 22081) (symbols 56 23279 0) (miscs 48 130 422) (strings 32 29961 2899) (string-bytes 1 788055) (vectors 16 17076) (vector-slots 8 461686 8433) (floats 8 87 296) (intervals 56 1762 121) (buffers 960 22)) From debbugs-submit-bounces@debbugs.gnu.org Thu May 05 12:01:39 2016 Received: (at 23457) by debbugs.gnu.org; 5 May 2016 16:01:39 +0000 Received: from localhost ([127.0.0.1]:40437 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ayLid-0006iD-F4 for submit@debbugs.gnu.org; Thu, 05 May 2016 12:01:39 -0400 Received: from eggs.gnu.org ([208.118.235.92]:51857) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ayLic-0006i1-77 for 23457@debbugs.gnu.org; Thu, 05 May 2016 12:01:38 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ayLiN-0005GN-OE for 23457@debbugs.gnu.org; Thu, 05 May 2016 12:01:29 -0400 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on eggs.gnu.org X-Spam-Level: X-Spam-Status: No, score=-1.3 required=5.0 tests=BAYES_50,RP_MATCHES_RCVD autolearn=disabled version=3.3.2 Received: from fencepost.gnu.org ([2001:4830:134:3::e]:48237) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ayLiN-0005F3-LG; Thu, 05 May 2016 12:01:23 -0400 Received: from 84.94.185.246.cable.012.net.il ([84.94.185.246]:3541 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_128_CBC_SHA1:128) (Exim 4.82) (envelope-from ) id 1ayLiH-0003tH-F2; Thu, 05 May 2016 12:01:17 -0400 Date: Thu, 05 May 2016 19:01:28 +0300 Message-Id: <83wpn8h4tj.fsf@gnu.org> From: Eli Zaretskii To: jamezmcclain@gmail.com In-reply-to: <8637pwubct.fsf@NOTE-REPLACE.i-did-not-set--mail-host-address--so-tickle-me> (jamezmcclain@gmail.com) Subject: Re: bug#23457: 24.5; interactive use of next-line and previous-line (holding down C-n or C-p) lag in a buffer with all spaces and newlines References: <8637pwubct.fsf@NOTE-REPLACE.i-did-not-set--mail-host-address--so-tickle-me> 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: -7.1 (-------) X-Debbugs-Envelope-To: 23457 Cc: 23457@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: -7.1 (-------) > From: jamezmcclain@gmail.com > Date: Thu, 05 May 2016 02:01:54 -0700 > > This is pretty minor, but it surprised me. When a buffer is filled with > spaces going all the way to the last column without overwrapping. If one > tries to navigate by lines using C-n or C-p and holding them down, there > is noticable lag. > Recipe: > 1. Open emacs : Emacs -Q > 2. Open a blank buffer: C-x b test-2 > 3. Fill the buffer up with spaces until it would force a linewrap, then > use C-j to enter a newline. C-u 115 > C-j > 4. The buffer should appear blank unless you use whitespace mode, now try > holding down C-n or C-p. Emacs will lag. > > I also tested this in a tty emacs session on linux over ssh, and it > seemed the lag was also aparent over there. > > The lag lasted at most around 5 seconds. I cannot reproduce this. I don't see any lags with this recipe. > My window-body-width is 115 and window-body-height is 60. But that's not what you get with "emacs -Q", right? So maybe the problem only happens when you don't use -Q? Also, is it possible that you have some optional display features enabled, like ClearType? Finally, maybe you could try a different build, preferably of the latest pretest of Emacs 25.1, and see if you have the same problem there. Thanks. From debbugs-submit-bounces@debbugs.gnu.org Thu May 05 15:26:25 2016 Received: (at 23457) by debbugs.gnu.org; 5 May 2016 19:26:25 +0000 Received: from localhost ([127.0.0.1]:40582 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ayOun-000519-8Y for submit@debbugs.gnu.org; Thu, 05 May 2016 15:26:25 -0400 Received: from eggs.gnu.org ([208.118.235.92]:47328) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ayOul-00050w-NV for 23457@debbugs.gnu.org; Thu, 05 May 2016 15:26:23 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ayOuX-0002Gb-3V for 23457@debbugs.gnu.org; Thu, 05 May 2016 15:26:15 -0400 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on eggs.gnu.org X-Spam-Level: X-Spam-Status: No, score=-1.3 required=5.0 tests=BAYES_50,RP_MATCHES_RCVD autolearn=disabled version=3.3.2 Received: from fencepost.gnu.org ([2001:4830:134:3::e]:51233) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ayOuX-0002Dt-0Z; Thu, 05 May 2016 15:26:09 -0400 Received: from 84.94.185.246.cable.012.net.il ([84.94.185.246]:3802 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_128_CBC_SHA1:128) (Exim 4.82) (envelope-from ) id 1ayOuP-0002wR-Un; Thu, 05 May 2016 15:26:03 -0400 Date: Thu, 05 May 2016 22:26:13 +0300 Message-Id: <83h9ecgvca.fsf@gnu.org> From: Eli Zaretskii To: James McClain In-reply-to: (message from James McClain on Thu, 5 May 2016 11:07:23 -0700) Subject: Re: bug#23457: 24.5; interactive use of next-line and previous-line (holding down C-n or C-p) lag in a buffer with all spaces and newlines References: <8637pwubct.fsf@NOTE-REPLACE.i-did-not-set--mail-host-address--so-tickle-me> <83wpn8h4tj.fsf@gnu.org> 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: -7.1 (-------) X-Debbugs-Envelope-To: 23457 Cc: 23457@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: -7.1 (-------) [Please keep the bug address on the CC line.] > From: James McClain > Date: Thu, 5 May 2016 11:07:23 -0700 > > I expanded the window to full screen after using emacs -Q, then split > it vertically to get that size. But I did start it with emacs -Q. > I just tested it on emacs-25.0.93-x86_64-w64-mingw32, starting with > .\emacs-25.0.93.exe -Q, and without changing the window size. > window body width is 80, window body height is 34. > Exactly what I did: > .\emacs-25.0.93.exe -Q > C-x b test-2 (to confirm) > f3 to start a macro > spaces until it would force a wrap (I do this by pressing space until > I see it wrap, then backspacing by 1) > C-j for a newline > Then I repeat this until I have a bunch of lines of just spaces, in > this case I did 67. > Try holding C-p to move, and I experience a lot of lag. Well, like I said: it doesn't happen here. Not sure what else to try. Did you look into the Emacs display features, like ClearType, in case you have that turned on? From debbugs-submit-bounces@debbugs.gnu.org Thu May 05 15:59:18 2016 Received: (at 23457) by debbugs.gnu.org; 5 May 2016 19:59:18 +0000 Received: from localhost ([127.0.0.1]:40602 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ayPQb-0005rA-PO for submit@debbugs.gnu.org; Thu, 05 May 2016 15:59:17 -0400 Received: from eggs.gnu.org ([208.118.235.92]:34928) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ayPQZ-0005qs-Gg for 23457@debbugs.gnu.org; Thu, 05 May 2016 15:59:15 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ayPQK-0005mh-V3 for 23457@debbugs.gnu.org; Thu, 05 May 2016 15:59:07 -0400 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on eggs.gnu.org X-Spam-Level: X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_40,RP_MATCHES_RCVD autolearn=disabled version=3.3.2 Received: from fencepost.gnu.org ([2001:4830:134:3::e]:51613) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ayPQK-0005k3-Ru; Thu, 05 May 2016 15:59:00 -0400 Received: from 84.94.185.246.cable.012.net.il ([84.94.185.246]:3843 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_128_CBC_SHA1:128) (Exim 4.82) (envelope-from ) id 1ayPQE-0000XL-OO; Thu, 05 May 2016 15:58:55 -0400 Date: Thu, 05 May 2016 22:59:05 +0300 Message-Id: <83futwgtti.fsf@gnu.org> From: Eli Zaretskii To: jamezmcclain@gmail.com In-reply-to: <83h9ecgvca.fsf@gnu.org> (message from Eli Zaretskii on Thu, 05 May 2016 22:26:13 +0300) Subject: Re: bug#23457: 24.5; interactive use of next-line and previous-line (holding down C-n or C-p) lag in a buffer with all spaces and newlines References: <8637pwubct.fsf@NOTE-REPLACE.i-did-not-set--mail-host-address--so-tickle-me> <83wpn8h4tj.fsf@gnu.org> <83h9ecgvca.fsf@gnu.org> 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: -7.1 (-------) X-Debbugs-Envelope-To: 23457 Cc: 23457@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: -7.1 (-------) > Date: Thu, 05 May 2016 22:26:13 +0300 > From: Eli Zaretskii > Cc: 23457@debbugs.gnu.org > > Did you look into the Emacs display features, like ClearType, in case > you have that turned on? And 2 more questions: . what kind of CPU do you have on that machine? . does Task Manager show a significant CPU load when you press and hold C-p in that recipe? From debbugs-submit-bounces@debbugs.gnu.org Thu May 05 20:35:03 2016 Received: (at 23457) by debbugs.gnu.org; 6 May 2016 00:35:03 +0000 Received: from localhost ([127.0.0.1]:40925 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ayTjT-0002Nx-Dx for submit@debbugs.gnu.org; Thu, 05 May 2016 20:35:03 -0400 Received: from mail-io0-f181.google.com ([209.85.223.181]:33533) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ayTjS-0002NP-0t for 23457@debbugs.gnu.org; Thu, 05 May 2016 20:35:02 -0400 Received: by mail-io0-f181.google.com with SMTP id f89so100733809ioi.0 for <23457@debbugs.gnu.org>; Thu, 05 May 2016 17:35:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=p6KB/ujhY0pQznt7JNeRgj68J2rmyyYR59U0JTvOKyk=; b=U5TxaAiVEGPMkGsLMhneyBbNyRStfYIL0YBAkIIwa0mneSBz06ofK0wubu77NNRlfm HS2YtJMAJCuUq3YvDdczKkJwjM+KQBT5IL0bL3OAfeGoHczxIYvJ9d8Bgn3aNVbxvCoq kuFjJ31uyxpBAPkmlmtVrHsy/bfk1kCouEOnmRj5SEsb7qRY/+vpqlVS8yfE+fZzwWi0 nMcyv7ALSalttzAnfxZF7GrF3wE62TwVid8GNoD4j9gJH+f9I1wVJ+IDtj6ZsABEeTou GFNnn+7tG2lgUIyfzFZvDv0JJJFT0bro1OBu0jyMsur1VR72LBOruTr1P4efhTZ/KB7G b+EA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=p6KB/ujhY0pQznt7JNeRgj68J2rmyyYR59U0JTvOKyk=; b=SQCzhXFiLfkk9ASfJpnUToamc4siIHL/f8tSkELJQyJrnMgMx7i9wDz8x9+DuoT6Wj +F57aKbUPrwqiQWKh7apC5hkMdlgThBqiOC1jb0x0EPXZzyVYT05ckGCIygoGq7INwmS GJ3Ijb3UlDZy61zizWgJyM6+61q9/RnBJZDH1NtvBFVM5hDsxU1WGZHKxCXwzMINFOPQ sKikW3yji6iPiO28rXidFkEnvlfaqocnGaS9zHHCGPCLjSshGPfIfjW+yaZljsxgdWCT WAT0Cy8lleUXi2fJolU7u9fio5BbvYgpuD6uteGfhIBifxKjyL8sO2a7d+qZubBwAwD0 itPA== X-Gm-Message-State: AOPr4FV1LCfxOQFy0ehK/7ppjZeROrNHRtTxO+BqHZyZ4FnchvJUqZADhlxtGyQue2bBfSioxp5nda+smO7MXg== X-Received: by 10.107.145.67 with SMTP id t64mr19889219iod.135.1462494896284; Thu, 05 May 2016 17:34:56 -0700 (PDT) MIME-Version: 1.0 Received: by 10.36.144.69 with HTTP; Thu, 5 May 2016 17:34:36 -0700 (PDT) In-Reply-To: <83futwgtti.fsf@gnu.org> References: <8637pwubct.fsf@NOTE-REPLACE.i-did-not-set--mail-host-address--so-tickle-me> <83wpn8h4tj.fsf@gnu.org> <83h9ecgvca.fsf@gnu.org> <83futwgtti.fsf@gnu.org> From: James McClain Date: Thu, 5 May 2016 17:34:36 -0700 Message-ID: Subject: Re: bug#23457: 24.5; interactive use of next-line and previous-line (holding down C-n or C-p) lag in a buffer with all spaces and newlines To: Eli Zaretskii Content-Type: text/plain; charset=UTF-8 X-Spam-Score: -0.1 (/) X-Debbugs-Envelope-To: 23457 Cc: 23457@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: -0.1 (/) I had cleartype on, but turning it off does not change the problem at all. The task manager shows about a 50% load, which is quite high for emacs. The processor is an intel core m 5y10c. I also just tested it on Linux Mint 17, 64-bit. Compiling emacs-25.0.93.tar.xz from source. This machine has a Intel i7-4930K processor, and the problem still happens. If you use my recipe and turn on whitespace-mode before you hold C-p, do all the spaces show? I would be happen to send you a video, this has worked on every machine I have tested it on. On Thu, May 5, 2016 at 12:59 PM, Eli Zaretskii wrote: >> Date: Thu, 05 May 2016 22:26:13 +0300 >> From: Eli Zaretskii >> Cc: 23457@debbugs.gnu.org >> >> Did you look into the Emacs display features, like ClearType, in case >> you have that turned on? > > And 2 more questions: > > . what kind of CPU do you have on that machine? > . does Task Manager show a significant CPU load when you press and > hold C-p in that recipe? > From debbugs-submit-bounces@debbugs.gnu.org Fri May 06 03:03:15 2016 Received: (at 23457) by debbugs.gnu.org; 6 May 2016 07:03:15 +0000 Received: from localhost ([127.0.0.1]:41073 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ayZn8-0004nM-Vp for submit@debbugs.gnu.org; Fri, 06 May 2016 03:03:15 -0400 Received: from eggs.gnu.org ([208.118.235.92]:59328) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ayZn7-0004n9-0y for 23457@debbugs.gnu.org; Fri, 06 May 2016 03:03:13 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ayZms-0002DK-LO for 23457@debbugs.gnu.org; Fri, 06 May 2016 03:03:04 -0400 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on eggs.gnu.org X-Spam-Level: X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_40,RP_MATCHES_RCVD autolearn=disabled version=3.3.2 Received: from fencepost.gnu.org ([2001:4830:134:3::e]:36610) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ayZms-0002CI-Hw; Fri, 06 May 2016 03:02:58 -0400 Received: from 84.94.185.246.cable.012.net.il ([84.94.185.246]:1204 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_128_CBC_SHA1:128) (Exim 4.82) (envelope-from ) id 1ayZmm-0000Yd-F3; Fri, 06 May 2016 03:02:52 -0400 Date: Fri, 06 May 2016 10:03:05 +0300 Message-Id: <8360urhdna.fsf@gnu.org> From: Eli Zaretskii To: James McClain In-reply-to: (message from James McClain on Thu, 5 May 2016 17:34:36 -0700) Subject: Re: bug#23457: 24.5; interactive use of next-line and previous-line (holding down C-n or C-p) lag in a buffer with all spaces and newlines References: <8637pwubct.fsf@NOTE-REPLACE.i-did-not-set--mail-host-address--so-tickle-me> <83wpn8h4tj.fsf@gnu.org> <83h9ecgvca.fsf@gnu.org> <83futwgtti.fsf@gnu.org> 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: -7.1 (-------) X-Debbugs-Envelope-To: 23457 Cc: 23457@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: -7.1 (-------) > From: James McClain > Date: Thu, 5 May 2016 17:34:36 -0700 > Cc: 23457@debbugs.gnu.org > > I had cleartype on, but turning it off does not change the problem at all. > The task manager shows about a 50% load, which is quite high for emacs. > The processor is an intel core m 5y10c. > > I also just tested it on Linux Mint 17, 64-bit. Compiling > emacs-25.0.93.tar.xz from source. > This machine has a Intel i7-4930K processor, and the problem still happens. Does that GNU/Linux system has anything in common with your Windows box? The display, the keyboard, the filesystem, anything else? Do you have some common setup of any ind that makes those systems similar? > If you use my recipe and turn on whitespace-mode before you hold C-p, > do all the spaces show? Yes, the spaces show. > I would be happen to send you a video, this has worked on every > machine I have tested it on. I believe you. I just cannot reproduce this on any machine to which I have access. How many such empty lines do you have in the buffer where this lag happens? Your original recipe talked about a single line; is that all that's needed, or are more such lines required? Does the same happen in "emacs -Q -nw", i.e. a non-GUI (text-mode) session? Thanks. From debbugs-submit-bounces@debbugs.gnu.org Fri May 06 03:59:25 2016 Received: (at 23457) by debbugs.gnu.org; 6 May 2016 07:59:25 +0000 Received: from localhost ([127.0.0.1]:41087 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ayafV-00060b-E1 for submit@debbugs.gnu.org; Fri, 06 May 2016 03:59:25 -0400 Received: from out5-smtp.messagingengine.com ([66.111.4.29]:48266) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ayafT-00060S-5d for 23457@debbugs.gnu.org; Fri, 06 May 2016 03:59:23 -0400 Received: from compute6.internal (compute6.nyi.internal [10.202.2.46]) by mailout.nyi.internal (Postfix) with ESMTP id E5D1620AA5 for <23457@debbugs.gnu.org>; Fri, 6 May 2016 03:59:22 -0400 (EDT) Received: from frontend1 ([10.202.2.160]) by compute6.internal (MEProxy); Fri, 06 May 2016 03:59:22 -0400 DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to:x-sasl-enc :x-sasl-enc; s=smtpout; bh=RCrwbo6CQ4CtyPDvxTuQ1X0sw6g=; b=XtpXp ZIgH5uzlyp2ViIifJ1SzCZmGSqkTxkwKCXBYQzUl9eSL91hrr1mDbCWfdHv8fkYL ZAuH37pid6cpMryHF7x5qjidsFmOkFtF2HLwEt91PmvyAqgguq504t7Rg26PSrQ7 rfuGW/XigiQ+OEZkCGJBdZYXEq0MpoG0CdAsJA= X-Sasl-enc: FbA1ZwhVbzJB1es1xLSybGIQQ9XIqHscFQMf/oxP67su 1462521562 Received: from blueberry (brc29-2-88-162-37-238.fbx.proxad.net [88.162.37.238]) by mail.messagingengine.com (Postfix) with ESMTPA id 1BB2FC00012; Fri, 6 May 2016 03:59:21 -0400 (EDT) From: Nicolas Petton To: Eli Zaretskii , James McClain Subject: Re: bug#23457: 24.5; interactive use of next-line and previous-line (holding down C-n or C-p) lag in a buffer with all spaces and newlines In-Reply-To: <8360urhdna.fsf@gnu.org> References: <8637pwubct.fsf@NOTE-REPLACE.i-did-not-set--mail-host-address--so-tickle-me> <83wpn8h4tj.fsf@gnu.org> <83h9ecgvca.fsf@gnu.org> <83futwgtti.fsf@gnu.org> <8360urhdna.fsf@gnu.org> User-Agent: Notmuch/0.21 (http://notmuchmail.org) Emacs/25.0.92.2 (x86_64-unknown-linux-gnu) Date: Fri, 06 May 2016 09:59:20 +0200 Message-ID: <87h9ebr50n.fsf@petton.fr> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha256; protocol="application/pgp-signature" X-Spam-Score: -0.7 (/) X-Debbugs-Envelope-To: 23457 Cc: 23457@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 (/) --=-=-= Content-Type: text/plain Eli Zaretskii writes: > I believe you. I just cannot reproduce this on any machine to which I > have access. I also can't reproduce it on my Linux box with Emacs 25.0.93. Nico --=-=-= Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 Comment: GPGTools - http://gpgtools.org iQEcBAEBCAAGBQJXLE7YAAoJECM1h6R8IHkQfmIH/2HAh+mv1FzROnvtipqymylk 8tTfQTX8H8XSXSTSe552dVxPCx7/Xwvm29W64eRcZxzoCHCPb9fOV+/c3bOfRww5 QoN3M+M3r29hNLyqlnj3o+1xBwNjj8YUucKRFzeLhZqsrINWxMVLU0qb19sMTlJ0 dgpK97XC8XACDnC7hUF/poHoPNCv92msERtKFcJrRZB9V8MgX8uVtu1lm7IOSQjw 3x5M3AVTGa7921gcq6/XIgpCycQe5v5UG4eOVJ/PA+nEviSq/oRd4o+TqdkMJxON jhG+zKOCjG1X4qV2AZKZJyGCyxdjDPEwA/4XW+7YRSvqB64jTwyt5Gvr4ITEPt8= =5trQ -----END PGP SIGNATURE----- --=-=-=-- From debbugs-submit-bounces@debbugs.gnu.org Fri May 06 04:41:53 2016 Received: (at 23457) by debbugs.gnu.org; 6 May 2016 08:41:53 +0000 Received: from localhost ([127.0.0.1]:41097 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1aybKb-0006xN-A2 for submit@debbugs.gnu.org; Fri, 06 May 2016 04:41:53 -0400 Received: from eggs.gnu.org ([208.118.235.92]:58420) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1aybKa-0006xA-5b for 23457@debbugs.gnu.org; Fri, 06 May 2016 04:41:52 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aybKL-0002yN-JT for 23457@debbugs.gnu.org; Fri, 06 May 2016 04:41:43 -0400 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on eggs.gnu.org X-Spam-Level: X-Spam-Status: No, score=-4.0 required=5.0 tests=BAYES_00,RP_MATCHES_RCVD autolearn=disabled version=3.3.2 Received: from fencepost.gnu.org ([2001:4830:134:3::e]:38280) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aybKL-0002xs-GB; Fri, 06 May 2016 04:41:37 -0400 Received: from 84.94.185.246.cable.012.net.il ([84.94.185.246]:1290 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_128_CBC_SHA1:128) (Exim 4.82) (envelope-from ) id 1aybKF-0006tG-Df; Fri, 06 May 2016 04:41:31 -0400 Date: Fri, 06 May 2016 11:41:44 +0300 Message-Id: <834mabh92v.fsf@gnu.org> From: Eli Zaretskii To: Nicolas Petton In-reply-to: <87h9ebr50n.fsf@petton.fr> (message from Nicolas Petton on Fri, 06 May 2016 09:59:20 +0200) Subject: Re: bug#23457: 24.5; interactive use of next-line and previous-line (holding down C-n or C-p) lag in a buffer with all spaces and newlines References: <8637pwubct.fsf@NOTE-REPLACE.i-did-not-set--mail-host-address--so-tickle-me> <83wpn8h4tj.fsf@gnu.org> <83h9ecgvca.fsf@gnu.org> <83futwgtti.fsf@gnu.org> <8360urhdna.fsf@gnu.org> <87h9ebr50n.fsf@petton.fr> 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: -7.1 (-------) X-Debbugs-Envelope-To: 23457 Cc: jamezmcclain@gmail.com, 23457@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: -7.1 (-------) > From: Nicolas Petton > Cc: 23457@debbugs.gnu.org > Date: Fri, 06 May 2016 09:59:20 +0200 > > Eli Zaretskii writes: > > > I believe you. I just cannot reproduce this on any machine to which I > > have access. > > I also can't reproduce it on my Linux box with Emacs 25.0.93. Thanks. Would others please try reproducing the recipe? Any ideas what could cause such a lag, in a way that affects both Windows and GNU/Linux systems? I'm quite stumped. From debbugs-submit-bounces@debbugs.gnu.org Fri May 06 04:44:22 2016 Received: (at 23457) by debbugs.gnu.org; 6 May 2016 08:44:22 +0000 Received: from localhost ([127.0.0.1]:41115 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1aybN0-00072J-4F for submit@debbugs.gnu.org; Fri, 06 May 2016 04:44:22 -0400 Received: from mail-io0-f179.google.com ([209.85.223.179]:35080) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1aybMz-000727-0x for 23457@debbugs.gnu.org; Fri, 06 May 2016 04:44:21 -0400 Received: by mail-io0-f179.google.com with SMTP id d62so108229968iof.2 for <23457@debbugs.gnu.org>; Fri, 06 May 2016 01:44:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=vgeTNtWPJuNmmloZtZtzdZ0Ex6M8UPWgUkopE8sb5a4=; b=PbUDKxRE2eQK/eC5begWGiAnjK5FfmEyVPUSMhUHgMf/VNKQm11pxl2skRlfuu1kZE wG0qp3oDWDJT5dwpoisaLgVf2/FukYt5jYZ4SASDCaUtFrgMDpBfwGH8axJFOy6EVtbC ET36m/j1dRyc6jF94TCAx9E5+5BatCgT6+8VNUoJtLdgBZZ7iFhgUc3bVgLpyNmZ7D0u 5Gz7ALqaJREMDtic05QGAXuZGQzYtTyfE0ff+MZo5XCjl0WmI3qEhMpzY4W2/U/e+TPn +4jE5VC+moUrnmqmxht3OmhtLVWNHVVlWr3FJXukaGdj6Dl16AC1DV/h3H2z3RYZQ7O8 N2gg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=vgeTNtWPJuNmmloZtZtzdZ0Ex6M8UPWgUkopE8sb5a4=; b=KOYnPW+aw78k+ZRiaO1blhy7Vi2IhEsmVPfh9kgpjAZOWmOfj4/VVxKKuBlareXyYu APgtpAzq8QXWUm0dfMecedTAHXoV1D5WxRKCLMswm+1mfYVVoRGvkd0Ao5zBa+x/kPKL 18ovZtdcur6DIhMGhEemyKcYW/csiAOtGbcsapqmyuZemCZdINk5fNpZaAgx6fpESdYr 583i0ZMigO4UAGcs+hR0EtzZqkgeO4kkOFZDAKBUnYr9/kbvzjF72CzFNoKowog1i0pY rY9oALScTyT+QuZalbOn+sNWYe2GQnX6zd0wDohmo+unrYDw4RB8oZzRipZpmm0Os1EH A34Q== X-Gm-Message-State: AOPr4FW6tFvDXcs2e3625jE1cBFoare441ye8nju1C/5wHqm6Z2dfgSwiNV/IeFuVR75MQWtSIwEwzcBtWAz+w== X-Received: by 10.107.145.67 with SMTP id t64mr21684309iod.135.1462524255100; Fri, 06 May 2016 01:44:15 -0700 (PDT) MIME-Version: 1.0 Received: by 10.36.144.69 with HTTP; Fri, 6 May 2016 01:43:55 -0700 (PDT) In-Reply-To: <87h9ebr50n.fsf@petton.fr> References: <8637pwubct.fsf@NOTE-REPLACE.i-did-not-set--mail-host-address--so-tickle-me> <83wpn8h4tj.fsf@gnu.org> <83h9ecgvca.fsf@gnu.org> <83futwgtti.fsf@gnu.org> <8360urhdna.fsf@gnu.org> <87h9ebr50n.fsf@petton.fr> From: James McClain Date: Fri, 6 May 2016 01:43:55 -0700 Message-ID: Subject: Re: bug#23457: 24.5; interactive use of next-line and previous-line (holding down C-n or C-p) lag in a buffer with all spaces and newlines To: Nicolas Petton Content-Type: text/plain; charset=UTF-8 X-Spam-Score: -0.1 (/) X-Debbugs-Envelope-To: 23457 Cc: Eli Zaretskii , 23457@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: -0.1 (/) The linux box has nothing in common with my windows box, there should be no configurations shared that effect emacs, especially since I run it with -Q. For this to happen there needs to be many lines of just spaces and a newline. I talked about in a previous message having 67 of those lines, but I believe on my linux box it required more (less than 100 though). You also need to go to the very end of the file M->, then scroll up through the lines up to the top. I did not make that clear. Here is another take on the recipe, hopefully I can clear up any confusion. This is without resizing the window, so window-body-width should be 80. 1. .\emacs-25.0.93.exe -Q 2. C-x b test-2 3. 4. C-u 80 5. C-j 6. 7. C-u 120 8. You should now be at the bottom of the buffer and at the first column, but it doesn't hurt to hit M-> and C-a, so do that. 9. Now try moving up to the top of the buffer with C-p I experience lag doing this, to be clear about what I mean by that. I can cancel by using C-g, but unless I do that, I cannot execute commands until emacs finishes moving up lines. Which takes much longer than if instead of all spaces, I had instead one period before the newline. I cannot remember if I tested with with emacs -Q -nw on linux. I will report on this tomorrow as well as test the windows build on a newly deployed computer and maybe test it in a virtual box VM. I may also try setting it up tonight if I have the energy. On Fri, May 6, 2016 at 12:59 AM, Nicolas Petton wrote: > Eli Zaretskii writes: > >> I believe you. I just cannot reproduce this on any machine to which I >> have access. > > I also can't reproduce it on my Linux box with Emacs 25.0.93. > > Nico From debbugs-submit-bounces@debbugs.gnu.org Fri May 06 05:14:00 2016 Received: (at 23457) by debbugs.gnu.org; 6 May 2016 09:14:00 +0000 Received: from localhost ([127.0.0.1]:41124 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1aybpf-0007iP-Pv for submit@debbugs.gnu.org; Fri, 06 May 2016 05:13:59 -0400 Received: from mout.gmx.net ([212.227.17.22]:56721) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1aybpd-0007iB-E9 for 23457@debbugs.gnu.org; Fri, 06 May 2016 05:13:57 -0400 Received: from rosalinde ([89.245.95.79]) by mail.gmx.com (mrgmx103) with ESMTPSA (Nemesis) id 0MGip3-1auT6r0V73-00DVhb; Fri, 06 May 2016 11:13:48 +0200 From: Stephen Berman To: James McClain Subject: Re: bug#23457: 24.5; interactive use of next-line and previous-line (holding down C-n or C-p) lag in a buffer with all spaces and newlines References: <8637pwubct.fsf@NOTE-REPLACE.i-did-not-set--mail-host-address--so-tickle-me> <83wpn8h4tj.fsf@gnu.org> <83h9ecgvca.fsf@gnu.org> <83futwgtti.fsf@gnu.org> <8360urhdna.fsf@gnu.org> <87h9ebr50n.fsf@petton.fr> Date: Fri, 06 May 2016 11:13:46 +0200 In-Reply-To: (James McClain's message of "Fri, 6 May 2016 01:43:55 -0700") Message-ID: <874mab8s6t.fsf@gmx.net> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.0.93 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Provags-ID: V03:K0:yI7S9RsgkCWQrTVW4o/2zEUwJz4GBTssxX21EzmDy48tg6r2Mc0 XJ9muW5gtKAku0vzQRIMLnBRnSde4WoZl3DRQvys7rZCaWLJPqTVdvVkvAI2eMMJmdSvoMO iU9/G3gdoyjhQSFDf6Uwkg67WrLCwp7dnFUpqiVNhbd8BDc8XRQCXH9wjGFDeOEiPxn38zE yPYPbLmz7gh0ZEwonZCbA== X-UI-Out-Filterresults: notjunk:1;V01:K0:q06yPbi7Ia0=:Hs4hbIbe0sRSsfWbPHOLmQ Mp2Yo+7IA1o+/d+BSNQcBiG+Tpw9xq33/92HAieilAefLV83uPyftvS74U9JvD+fpGNgtihsT MfKwYI8dYJZ5wI1yOsr5bFXEGUHurvnFEWOzGFl2vzuxqpoLrx7O3uc+UOKstzXHCHLT5Ilbb 2e47XXcrrVvc5NXTwsrisejWeJAMw57dPy1fUg/3yHE/gZz1wnItNfFThBzxf4KYx4obUkhPP FlAOr9CbNxkBcSaaDMslJRwQc8ZXScBxO6Z+QEDb0o74iGPI8qug8eQCuaZSXTbRHpyq2MT5D 6Ew/8DlnahuRiNZRrl4v5bXAGagmCCg6f4VhBt5Lox/PDX17Tx4PlgHjjcFHMBBNV/367qfAT WGaYhOEMiBOGQG94nRaRCw2LM74ln63c/q16UMOnzRbEhuKHndcNb1yhPNySp/ay794E1XB3P donSlCuTQoXSa2qk8bdN706oR99T6AAK4AZjJkD33aU8c7fe8n/WnlCOpLdu2fE3blOhihDjh LPTsh0FUDDIZIzV/4doguD6MYB0Jdmp5JpdRz6AA8FDxFgP/WTrNOBghar5a1k9nWDdSCL3q0 MVZ4uwW2y8dH7QDxCNNfWscuEB/wWlKttDrpQ+sF9hUxZkL7hEnvciM+lTXDfXd+u5cUVmOhp xgInZVlVMny/Zn/LEqx6NDdqD0xqfI4H0QP2A1jd4KjSoITlMLLSh72tgKx5xbuSnxBvNx/KM bGUpWgYyaE5noMAzUT6LrzG/VEMfq85O1FAWFDpkOSrkAPQZN+79kNV46zcYEcFtXgOXfQyjg LDImMHN X-Spam-Score: -2.8 (--) X-Debbugs-Envelope-To: 23457 Cc: Nicolas Petton , 23457@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 (--) On Fri, 6 May 2016 01:43:55 -0700 James McClain wrote: > Here is another take on the recipe, hopefully I can clear up any confusion. > This is without resizing the window, so window-body-width should be 80. > 1. .\emacs-25.0.93.exe -Q > 2. C-x b test-2 > 3. > 4. C-u 80 > 5. C-j > 6. > 7. C-u 120 > 8. You should now be at the bottom of the buffer and at the first column, > but it doesn't hurt to hit M-> and C-a, so do that. > 9. Now try moving up to the top of the buffer with C-p > > I experience lag doing this [...] I can reproduce this with the above recipe. At step 9 I held down C-p for five seconds; after about 1 second point moved up one line (from 122 to 121), then Emacs froze for about 45 seconds, after which point jumped to bob. Here's my build: In GNU Emacs 25.0.93.3 (x86_64-suse-linux-gnu, GTK+ Version 3.14.15) of 2016-05-04 built on rosalinde Repository revision: adc80b7e238e09b1b8c392ecf902d2b978d9016d Windowing system distributor 'The X.Org Foundation', version 11.0.11601000 System Description: openSUSE 13.2 (Harlequin) (x86_64) Configured using: 'configure --with-xwidgets 'CFLAGS=-Og -g3'' Configured features: XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND DBUS GCONF GSETTINGS NOTIFY GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS GTK3 X11 XWIDGETS Important settings: value of $LANG: en_US.UTF-8 value of $XMODIFIERS: @im=ibus locale-coding-system: utf-8-unix And here's /proc/cpuinfo: processor : 0 vendor_id : AuthenticAMD cpu family : 15 model : 95 model name : AMD Sempron(tm) Processor 3400+ stepping : 2 cpu MHz : 1000.000 cache size : 256 KB physical id : 0 siblings : 1 core id : 0 cpu cores : 1 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext fxsr_opt rdtscp lm 3dnowext 3dnow rep_good nopl extd_apicid pni cx16 lahf_lm extapic cr8_legacy bogomips : 2010.12 TLB size : 1024 4K pages clflush size : 64 cache_alignment : 64 address sizes : 40 bits physical, 48 bits virtual power management: ts fid vid ttp tm stc Steve Berman From debbugs-submit-bounces@debbugs.gnu.org Fri May 06 05:15:11 2016 Received: (at 23457) by debbugs.gnu.org; 6 May 2016 09:15:11 +0000 Received: from localhost ([127.0.0.1]:41132 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1aybqp-0007l7-BH for submit@debbugs.gnu.org; Fri, 06 May 2016 05:15:11 -0400 Received: from eggs.gnu.org ([208.118.235.92]:36893) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1aybqo-0007kv-3P for 23457@debbugs.gnu.org; Fri, 06 May 2016 05:15:10 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aybqZ-0004RK-Hd for 23457@debbugs.gnu.org; Fri, 06 May 2016 05:15:01 -0400 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on eggs.gnu.org X-Spam-Level: X-Spam-Status: No, score=-1.3 required=5.0 tests=BAYES_50,RP_MATCHES_RCVD autolearn=disabled version=3.3.2 Received: from fencepost.gnu.org ([2001:4830:134:3::e]:38800) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aybqZ-0004QE-Ej; Fri, 06 May 2016 05:14:55 -0400 Received: from 84.94.185.246.cable.012.net.il ([84.94.185.246]:2623 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_128_CBC_SHA1:128) (Exim 4.82) (envelope-from ) id 1aybqT-0006lY-9J; Fri, 06 May 2016 05:14:49 -0400 Date: Fri, 06 May 2016 12:15:02 +0300 Message-Id: <8337pvh7jd.fsf@gnu.org> From: Eli Zaretskii To: James McClain In-reply-to: (message from James McClain on Fri, 6 May 2016 01:43:55 -0700) Subject: Re: bug#23457: 24.5; interactive use of next-line and previous-line (holding down C-n or C-p) lag in a buffer with all spaces and newlines References: <8637pwubct.fsf@NOTE-REPLACE.i-did-not-set--mail-host-address--so-tickle-me> <83wpn8h4tj.fsf@gnu.org> <83h9ecgvca.fsf@gnu.org> <83futwgtti.fsf@gnu.org> <8360urhdna.fsf@gnu.org> <87h9ebr50n.fsf@petton.fr> 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: -7.1 (-------) X-Debbugs-Envelope-To: 23457 Cc: nicolas@petton.fr, 23457@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: -7.1 (-------) > From: James McClain > Date: Fri, 6 May 2016 01:43:55 -0700 > Cc: Eli Zaretskii , 23457@debbugs.gnu.org > > For this to happen there needs to be many lines of just spaces and a > newline. I talked about in a previous message having 67 of those > lines, but I believe on my linux box it required more (less than 100 > though). You also need to go to the very end of the file M->, then > scroll up through the lines up to the top. I did not make that clear. Ah! Now I do see this. And this doesn't happen in *scratch*, right? To make the problem go away, do this: M-x set-variable RET bidi-paragraph-direction RET left-to-right RET In any buffer whose major mode supports some programming language (like *scratch*, which supports Emacs Lisp), the above variable is already set to that value by default, so the problem won't happen. Anyway, now that I see the problem and understand its reasons, is there any real-life use case where this problem happens? If so, please describe that use case. Otherwise, this is expected behavior, and this bug should be closed. > I experience lag doing this, to be clear about what I mean by that. I > can cancel by using C-g, but unless I do that, I cannot execute > commands until emacs finishes moving up lines. Which takes much longer > than if instead of all spaces, I had instead one period before the > newline. The contents of the buffer that you describe make redisplay work very hard, so the time it takes to refresh the display after you move point is long. On my machine, a single C-p from the end of a 200-line buffer with all-blank lines takes 2 sec in an unoptimized build, and less than 1 sec in an optimized build. > I cannot remember if I tested with with emacs -Q -nw on linux. No need, now that I understand the problem. Thanks. From debbugs-submit-bounces@debbugs.gnu.org Fri May 06 05:19:50 2016 Received: (at 23457) by debbugs.gnu.org; 6 May 2016 09:19:50 +0000 Received: from localhost ([127.0.0.1]:41136 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1aybvJ-0007rh-V0 for submit@debbugs.gnu.org; Fri, 06 May 2016 05:19:50 -0400 Received: from mail-ig0-f169.google.com ([209.85.213.169]:38565) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1aybvI-0007rW-Ut for 23457@debbugs.gnu.org; Fri, 06 May 2016 05:19:49 -0400 Received: by mail-ig0-f169.google.com with SMTP id m9so35892272ige.1 for <23457@debbugs.gnu.org>; Fri, 06 May 2016 02:19:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=N2meKlJmLa3jRTOmPvQDpWDIX85sXPqK5YfowICCxFg=; b=ZbWVSxuBxgQyRwZnxtsAkHeZFk+2JGCgsdjEKpbBqCS8r8LzcNxX44HGvqDw9HGpVg Eyjy4BBe6sghndXPqPvcrJjn3LJMi3ttRLVTJKOzbi3UX9kQvEU7K3NgEZOZn26sj1yK W64v34Ao5KzKLLpXAnmpsVgOs7x1eX5IZNv+3+DEzEO/LBE9NtYVW7hW44Ma9w90Osxj 9OT1PazL/7S1GV1rEIypQQimrKTqyRlyHYFedKoqMIrkikxGT81srsoLEQLTt+sALlE5 PMxpLSNcGEVhRav+kTyXmlvNG2I9de4s4eiQda/RgPpF1VL+NenoSNBTIw/NrZhyJj/R ZdxA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=N2meKlJmLa3jRTOmPvQDpWDIX85sXPqK5YfowICCxFg=; b=N3rUZzOZWiPiYE3Gq18S/Y17ajVooTU0SPiGMnVM//8IvL5KCPkIp3qR7yNz75lJeA wzMPiQFqsOTimK4gsUro1m1oRSn0H8CcpiADtwlRAK/sxQpoJrcLLkxTtdAEAMviRBEW ZKSbeDzi9fT25J60oR5FBALF9C0ZiXDmgjWC0ja+cVfIy5/zZWXw8g49JgJFHoe5SoCl Rd3BLOHMhBJnThYqBauT5xktibjF5MK6v0J41Iqzwoxxew/R6cSx86qoqJHH7v3SuqfG 8fN2D3Bbor8QwG6CwhnszvFGbV9goIW+1AklXZ0kQc2MPwNOI4o8U+mVIUEcotGQdD01 1OZg== X-Gm-Message-State: AOPr4FXqFAyL3ty5iNHNoHaoAFLN1MbDNpjtiWCc10Na4l3H9qQKF//mnRLGmpZwpkVK/upToTKnccHAqIqcHw== X-Received: by 10.50.28.193 with SMTP id d1mr9205789igh.96.1462526383491; Fri, 06 May 2016 02:19:43 -0700 (PDT) MIME-Version: 1.0 Received: by 10.36.144.69 with HTTP; Fri, 6 May 2016 02:19:24 -0700 (PDT) In-Reply-To: <8337pvh7jd.fsf@gnu.org> References: <8637pwubct.fsf@NOTE-REPLACE.i-did-not-set--mail-host-address--so-tickle-me> <83wpn8h4tj.fsf@gnu.org> <83h9ecgvca.fsf@gnu.org> <83futwgtti.fsf@gnu.org> <8360urhdna.fsf@gnu.org> <87h9ebr50n.fsf@petton.fr> <8337pvh7jd.fsf@gnu.org> From: James McClain Date: Fri, 6 May 2016 02:19:24 -0700 Message-ID: Subject: Re: bug#23457: 24.5; interactive use of next-line and previous-line (holding down C-n or C-p) lag in a buffer with all spaces and newlines To: Eli Zaretskii Content-Type: text/plain; charset=UTF-8 X-Spam-Score: -0.1 (/) X-Debbugs-Envelope-To: 23457 Cc: Nicolas Petton , 23457@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: -0.1 (/) There is no real-life use case at all where I can see this problem happening, I was just curious as to why. Thank you for figuring that out, Glad to see I'm not crazy! Regards, James On Fri, May 6, 2016 at 2:15 AM, Eli Zaretskii wrote: >> From: James McClain >> Date: Fri, 6 May 2016 01:43:55 -0700 >> Cc: Eli Zaretskii , 23457@debbugs.gnu.org >> >> For this to happen there needs to be many lines of just spaces and a >> newline. I talked about in a previous message having 67 of those >> lines, but I believe on my linux box it required more (less than 100 >> though). You also need to go to the very end of the file M->, then >> scroll up through the lines up to the top. I did not make that clear. > > Ah! Now I do see this. And this doesn't happen in *scratch*, right? > > To make the problem go away, do this: > > M-x set-variable RET bidi-paragraph-direction RET left-to-right RET > > In any buffer whose major mode supports some programming language > (like *scratch*, which supports Emacs Lisp), the above variable is > already set to that value by default, so the problem won't happen. > > Anyway, now that I see the problem and understand its reasons, is > there any real-life use case where this problem happens? If so, > please describe that use case. Otherwise, this is expected behavior, > and this bug should be closed. > >> I experience lag doing this, to be clear about what I mean by that. I >> can cancel by using C-g, but unless I do that, I cannot execute >> commands until emacs finishes moving up lines. Which takes much longer >> than if instead of all spaces, I had instead one period before the >> newline. > > The contents of the buffer that you describe make redisplay work very > hard, so the time it takes to refresh the display after you move point > is long. On my machine, a single C-p from the end of a 200-line > buffer with all-blank lines takes 2 sec in an unoptimized build, and > less than 1 sec in an optimized build. > >> I cannot remember if I tested with with emacs -Q -nw on linux. > > No need, now that I understand the problem. > > Thanks. From debbugs-submit-bounces@debbugs.gnu.org Fri May 06 05:21:00 2016 Received: (at 23457) by debbugs.gnu.org; 6 May 2016 09:21:00 +0000 Received: from localhost ([127.0.0.1]:41140 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1aybwS-0007tY-9i for submit@debbugs.gnu.org; Fri, 06 May 2016 05:21:00 -0400 Received: from eggs.gnu.org ([208.118.235.92]:38415) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1aybwQ-0007tL-Ii for 23457@debbugs.gnu.org; Fri, 06 May 2016 05:20:58 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aybwB-0006VJ-TI for 23457@debbugs.gnu.org; Fri, 06 May 2016 05:20:50 -0400 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on eggs.gnu.org X-Spam-Level: X-Spam-Status: No, score=-1.3 required=5.0 tests=BAYES_50,RP_MATCHES_RCVD autolearn=disabled version=3.3.2 Received: from fencepost.gnu.org ([2001:4830:134:3::e]:38878) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aybwB-0006U9-Q0; Fri, 06 May 2016 05:20:43 -0400 Received: from 84.94.185.246.cable.012.net.il ([84.94.185.246]:2628 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_128_CBC_SHA1:128) (Exim 4.82) (envelope-from ) id 1aybw4-0007Tb-I5; Fri, 06 May 2016 05:20:36 -0400 Date: Fri, 06 May 2016 12:20:49 +0300 Message-Id: <831t5fh79q.fsf@gnu.org> From: Eli Zaretskii To: Stephen Berman In-reply-to: <874mab8s6t.fsf@gmx.net> (message from Stephen Berman on Fri, 06 May 2016 11:13:46 +0200) Subject: Re: bug#23457: 24.5; interactive use of next-line and previous-line (holding down C-n or C-p) lag in a buffer with all spaces and newlines References: <8637pwubct.fsf@NOTE-REPLACE.i-did-not-set--mail-host-address--so-tickle-me> <83wpn8h4tj.fsf@gnu.org> <83h9ecgvca.fsf@gnu.org> <83futwgtti.fsf@gnu.org> <8360urhdna.fsf@gnu.org> <87h9ebr50n.fsf@petton.fr> <874mab8s6t.fsf@gmx.net> 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: -7.1 (-------) X-Debbugs-Envelope-To: 23457 Cc: jamezmcclain@gmail.com, nicolas@petton.fr, 23457@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: -7.1 (-------) > From: Stephen Berman > Date: Fri, 06 May 2016 11:13:46 +0200 > Cc: Nicolas Petton , 23457@debbugs.gnu.org > > I can reproduce this with the above recipe. At step 9 I held down C-p > for five seconds; after about 1 second point moved up one line (from 122 > to 121), then Emacs froze for about 45 seconds, after which point jumped > to bob. A large buffer with no text paragraph anywhere in sight caused Emacs to search back for the end of the previous paragraph, in order to decide what is the base direction for the current paragraph. In addition, every line is long, but empty, so regex search also takes time. The search is limited to a certain number of lines, so the lag should level out after that, but otherwise just don't use such empty lines in buffers whose bidi-paragraph-direction is nil. From debbugs-submit-bounces@debbugs.gnu.org Fri May 06 05:24:21 2016 Received: (at 23457-done) by debbugs.gnu.org; 6 May 2016 09:24:21 +0000 Received: from localhost ([127.0.0.1]:41144 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1aybzg-0007yv-PC for submit@debbugs.gnu.org; Fri, 06 May 2016 05:24:20 -0400 Received: from eggs.gnu.org ([208.118.235.92]:39247) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1aybze-0007yi-Qk for 23457-done@debbugs.gnu.org; Fri, 06 May 2016 05:24:19 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aybzQ-0007ZP-BI for 23457-done@debbugs.gnu.org; Fri, 06 May 2016 05:24:10 -0400 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on eggs.gnu.org X-Spam-Level: X-Spam-Status: No, score=-2.1 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]:38930) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aybzQ-0007Ya-8D; Fri, 06 May 2016 05:24:04 -0400 Received: from 84.94.185.246.cable.012.net.il ([84.94.185.246]:2633 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_128_CBC_SHA1:128) (Exim 4.82) (envelope-from ) id 1aybzK-00080U-5p; Fri, 06 May 2016 05:23:58 -0400 Date: Fri, 06 May 2016 12:24:10 +0300 Message-Id: <83zis3fsjp.fsf@gnu.org> From: Eli Zaretskii To: James McClain In-reply-to: (message from James McClain on Fri, 6 May 2016 02:19:24 -0700) Subject: Re: bug#23457: 24.5; interactive use of next-line and previous-line (holding down C-n or C-p) lag in a buffer with all spaces and newlines References: <8637pwubct.fsf@NOTE-REPLACE.i-did-not-set--mail-host-address--so-tickle-me> <83wpn8h4tj.fsf@gnu.org> <83h9ecgvca.fsf@gnu.org> <83futwgtti.fsf@gnu.org> <8360urhdna.fsf@gnu.org> <87h9ebr50n.fsf@petton.fr> <8337pvh7jd.fsf@gnu.org> 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: -7.1 (-------) X-Debbugs-Envelope-To: 23457-done Cc: nicolas@petton.fr, 23457-done@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: -7.1 (-------) > From: James McClain > Date: Fri, 6 May 2016 02:19:24 -0700 > Cc: Nicolas Petton , 23457@debbugs.gnu.org > > There is no real-life use case at all where I can see this problem > happening, I was just curious as to why. > Thank you for figuring that out, > Glad to see I'm not crazy! Thanks, closing. From debbugs-submit-bounces@debbugs.gnu.org Sat May 07 04:02:35 2016 Received: (at 23457) by debbugs.gnu.org; 7 May 2016 08:02:35 +0000 Received: from localhost ([127.0.0.1]:42247 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ayxC7-0003sL-9H for submit@debbugs.gnu.org; Sat, 07 May 2016 04:02:35 -0400 Received: from eggs.gnu.org ([208.118.235.92]:41274) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ayxC5-0003s7-4I for 23457@debbugs.gnu.org; Sat, 07 May 2016 04:02:34 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ayxBy-0002co-Vq for 23457@debbugs.gnu.org; Sat, 07 May 2016 04:02:27 -0400 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on eggs.gnu.org X-Spam-Level: X-Spam-Status: No, score=-2.1 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]:33693) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ayxBv-0002bC-B0; Sat, 07 May 2016 04:02:23 -0400 Received: from 84.94.185.246.cable.012.net.il ([84.94.185.246]:3770 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_128_CBC_SHA1:128) (Exim 4.82) (envelope-from ) id 1ayxBs-0007og-Ft; Sat, 07 May 2016 04:02:21 -0400 Date: Sat, 07 May 2016 11:02:36 +0300 Message-Id: <8337pufg83.fsf@gnu.org> From: Eli Zaretskii To: 23457@debbugs.gnu.org, jamezmcclain@gmail.com In-reply-to: <83zis3fsjp.fsf@gnu.org> (message from Eli Zaretskii on Fri, 06 May 2016 12:24:10 +0300) Subject: Re: bug#23457: 24.5; interactive use of next-line and previous-line (holding down C-n or C-p) lag in a buffer with all spaces and newlines References: <8637pwubct.fsf@NOTE-REPLACE.i-did-not-set--mail-host-address--so-tickle-me> <83wpn8h4tj.fsf@gnu.org> <83h9ecgvca.fsf@gnu.org> <83futwgtti.fsf@gnu.org> <8360urhdna.fsf@gnu.org> <87h9ebr50n.fsf@petton.fr> <8337pvh7jd.fsf@gnu.org> <83zis3fsjp.fsf@gnu.org> 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: -7.1 (-------) X-Debbugs-Envelope-To: 23457 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: -7.1 (-------) > Date: Fri, 06 May 2016 12:24:10 +0300 > From: Eli Zaretskii > Cc: nicolas@petton.fr, 23457-done@debbugs.gnu.org > > > From: James McClain > > Date: Fri, 6 May 2016 02:19:24 -0700 > > Cc: Nicolas Petton , 23457@debbugs.gnu.org > > > > There is no real-life use case at all where I can see this problem > > happening, I was just curious as to why. > > Thank you for figuring that out, > > Glad to see I'm not crazy! > > Thanks, closing. Nevertheless, I tried to speed-up this use case on the master branch. From unknown Thu Aug 14 21:22:23 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, 04 Jun 2016 11:24:03 +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