From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Herman@debbugs.gnu.org, =?UTF-8?Q?G=C3=A9za?= Newsgroups: gmane.emacs.bugs Subject: bug#44007: 26.3; Strange shell mode performance Date: Thu, 15 Oct 2020 11:53:16 +0200 Message-ID: <499ab53f-7c23-b5ed-6105-3072fffb4bfe@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="40372"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.8.1 To: 44007@debbugs.gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Thu Oct 15 11:54:20 2020 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1kSzxk-000AQ6-6w for geb-bug-gnu-emacs@m.gmane-mx.org; 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[37.234.232.185]) by smtp.gmail.com with ESMTPSA id b8sm1234708edv.20.2020.10.15.02.53.17 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 15 Oct 2020 02:53:17 -0700 (PDT) Content-Language: sv-FI Received-SPF: pass client-ip=2a00:1450:4864:20::52a; envelope-from=geza.herman@gmail.com; helo=mail-ed1-x52a.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:190560 Archived-At: I'm experiencing strange shell (comint) mode performance. If I cat a 10 MB file, it takes 1:20 to cat it. Emacs uses only 30% cpu. But, if I press enter after I send the cat command, it speeds up, and it only takes 8 sec (emacs cpu usage goes up to 100%). Same thing: if I execute "seq 100000" in a small emacs window, it takes ~3 seconds. But, if I press enter after executing seq, it takes only 0.4 sec (this is not 100% reproducible, sometimes pressing enter doesn't make a difference). (I executed comint-clear-buffer before measurements) It happens with 26.3 and ~3-week-old master branch as well, without any extra config (emacs -Q). In GNU Emacs 26.3 (build 2, x86_64-pc-linux-gnu, GTK+ Version 3.24.20)  of 2020-05-17, modified by Debian built on x86-csail-01 Windowing system distributor 'The X.Org Foundation', version 11.0.12008000 System Description:    Debian GNU/Linux bullseye/sid Recent messages: Overwrite mode enabled in current buffer Overwrite mode disabled in current buffer Mark set [2 times] Setting ‘send-mail-function’ temporarily since "emacs -q" would overwrite customizations Sending... Mark set [2 times] Sending via mail... Sending...done mwheel-scroll: Beginning of buffer [8 times] mwheel-scroll: End of buffer [6 times] mwheel-scroll: Beginning of buffer [6 times] Configured using:  'configure --build x86_64-linux-gnu --prefix=/usr  --sharedstatedir=/var/lib --libexecdir=/usr/lib  --localstatedir=/var/lib --infodir=/usr/share/info  --mandir=/usr/share/man --enable-libsystemd --with-pop=yes  --enable-locallisppath=/etc/emacs:/usr/local/share/emacs/26.3/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/26.3/site-lisp:/usr/share/emacs/site-lisp  --with-sound=alsa --without-gconf --with-mailutils --build  x86_64-linux-gnu --prefix=/usr --sharedstatedir=/var/lib  --libexecdir=/usr/lib --localstatedir=/var/lib  --infodir=/usr/share/info --mandir=/usr/share/man --enable-libsystemd  --with-pop=yes  --enable-locallisppath=/etc/emacs:/usr/local/share/emacs/26.3/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/26.3/site-lisp:/usr/share/emacs/site-lisp  --with-sound=alsa --without-gconf --with-mailutils --with-x=yes  --with-x-toolkit=gtk3 --with-toolkit-scroll-bars 'CFLAGS=-g -O2  -fdebug-prefix-map=/build/emacs-mHAik2/emacs-26.3+1=. -fstack-protector-strong  -Wformat -Werror=format-security -Wall' 'CPPFLAGS=-Wdate-time  -D_FORTIFY_SOURCE=2' LDFLAGS=-Wl,-z,relro' Configured features: XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS GSETTINGS GLIB NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS GTK3 X11 XDBE XIM THREADS LIBSYSTEMD LCMS2 Important settings:   value of $LC_ALL: C.UTF-8   value of $LANG: en_US.UTF-8   locale-coding-system: utf-8-unix Major mode: Lisp Interaction Minor modes in effect:   tooltip-mode: t   global-eldoc-mode: t   eldoc-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   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 Load-path shadows: None found. Features: (mailalias mailclient browse-url cus-edit cus-start cus-load wid-edit help-mode pp shadow sort mail-extr emacsbug message rmc puny seq byte-opt gv bytecomp byte-compile cconv cl-loaddefs cl-lib dired dired-loaddefs format-spec rfc822 mml easymenu mml-sec password-cache epa derived epg epg-config gnus-util rmail rmail-loaddefs mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums mm-util mail-prsvr mail-utils elec-pair time-date mule-util tooltip eldoc electric uniquify ediff-hook vc-hooks lisp-float-type mwheel term/x-win x-win term/common-win x-dnd tool-bar dnd fontset image regexp-opt fringe tabulated-list replace newcomment text-mode elisp-mode lisp-mode prog-mode register page menu-bar rfn-eshadow isearch timer select scroll-bar mouse jit-lock font-lock syntax facemenu font-core term/tty-colors frame cl-generic cham georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean japanese eucjp-ms cp51932 hebrew greek romanian slovak czech european ethiopic indian cyrillic chinese composite charscript charprop case-table epa-hook jka-cmpr-hook help simple abbrev obarray minibuffer cl-preloaded 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 threads dbusbind inotify lcms2 dynamic-setting system-font-setting font-render-setting move-toolbar gtk x-toolkit x multi-tty make-network-process emacs) Memory information: ((conses 16 121337 21158)  (symbols 48 22080 0)  (miscs 40 64 154)  (strings 32 32731 1152)  (string-bytes 1 852243)  (vectors 16 15681)  (vector-slots 8 516540 10022)  (floats 8 64 228)  (intervals 56 612 0)  (buffers 992 14))