Reported by: Sujith <m.sujith <at> gmail.com>
Date: Mon, 13 Feb 2017 18:41:01 UTC
Severity: normal
Tags: moreinfo
Found in version 26.0.50
Done: Alan Mackenzie <acm <at> muc.de>
Bug is archived. No further changes may be made.
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From: help-debbugs <at> gnu.org (GNU bug Tracking System) To: Sujith <m.sujith <at> gmail.com> Subject: bug#25706: closed (Re: bug#25706: 26.0.50; Slow C file fontification) Date: Tue, 15 Dec 2020 12:28:02 +0000
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Your bug report #25706: 26.0.50; Slow C file fontification which was filed against the emacs,cc-mode package, has been closed. The explanation is attached below, along with your original report. If you require more details, please reply to 25706 <at> debbugs.gnu.org. -- 25706: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=25706 GNU Bug Tracking System Contact help-debbugs <at> gnu.org with problems
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From: Alan Mackenzie <acm <at> muc.de> To: Ravine Var <ravine.var <at> gmail.com> Cc: Mattias Engdegård <mattiase <at> acm.org>, Lars Ingebrigtsen <larsi <at> gnus.org>, 25706-done <at> debbugs.gnu.org Subject: Re: bug#25706: 26.0.50; Slow C file fontification Date: Tue, 15 Dec 2020 12:27:45 +0000Hello, Ravine. On Tue, Dec 15, 2020 at 09:31:01 +0530, Ravine Var wrote: > > So, I propose that these two patches (the big one and the smaller > > one for all the c-forward-syntactic-ws's) are sufficient to fix the > > bug, and I propose closing it now. What do you say to that? > Works for me. Thanks for the patches. :-) Thank you for all the testing! I've committed the changes to everywhere relevant, and I'm closing the bug with this post. > > I have looked at the other problem you mention (slow scrolling > > through the machine-generated function proto_register_rrc in the > > wireshark file packet-rrc.c) and have made significant progress > > towards implementing a cache for the CC Mode function > > c-looking-at-or-maybe-in-bracelist, which should eliminate the long > > delays. Have you raised a new bug for this problem, yet? > https://debbugs.gnu.org/cgi/bugreport.cgi?bug=45248 Thank you for this new bug report. I'll carry on trying to fix it. -- Alan Mackenzie (Nuremberg, Germany).
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From: Sujith <m.sujith <at> gmail.com> To: bug-gnu-emacs <at> gnu.org Subject: 26.0.50; Slow C file fontification Date: Mon, 13 Feb 2017 23:50:20 +0530On a machine that is not very high-powered, opening some C files and trying to edit/view them is very slow. For example: https://raw.githubusercontent.com/qca/qcamain_open_hal_public/master/hal/ar9300/osprey_reg_map_macro.h This is a large file and filled with macros. Is there any way to view this without disabling font-lock entirely ? I am using the master branch and I have these in my .emacs: (global-font-lock-mode t) (setq font-lock-maximum-decoration (quote ((c-mode . 2) (c++-mode . 2) (t . t)))) (setq c-font-lock-extra-types (quote ("\\sw+_t" "bool" "complex" "imaginary" "FILE" "lconv" "tm" "va_list" "jmp_buf" "Lisp_Object" "u8" "u16" "u32" "u64" "s8" "s16" "s32" "s64" "__le16" "__le32" "__le64" "__be16" "__be32" "__be64" "__s8" "__s16" "__s32" "__s64" "__u8" "__u16" "__u32" "__u64"))) The machine is a low-end 10-inch netbook. Some details: $ uname -a Linux the-damned 4.10.0-rc7-wt #16 SMP PREEMPT Tue Feb 7 10:47:38 IST 2017 x86_64 GNU/Linux $ free -m -h total used free shared buff/cache available Mem: 1.8G 542M 560M 87M 766M 1.0G Swap: 2.0G 24M 2.0G $ cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 55 model name : Intel(R) Celeron(R) CPU N2807 @ 1.58GHz stepping : 8 microcode : 0x811 cpu MHz : 1828.644 cache size : 1024 KB processor : 1 vendor_id : GenuineIntel cpu family : 6 model : 55 model name : Intel(R) Celeron(R) CPU N2807 @ 1.58GHz stepping : 8 microcode : 0x811 cpu MHz : 1805.267 cache size : 1024 KB $ gcc -v Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-pc-linux-gnu/6.3.1/lto-wrapper Target: x86_64-pc-linux-gnu Configured with: /build/gcc-multilib/src/gcc/configure --prefix=/usr --libdir=/usr/lib --libexecdir=/usr/lib --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=https://bugs.archlinux.org/ --enable-languages=c,c++,ada,fortran,go,lto,objc,obj-c++ --enable-shared --enable-threads=posix --enable-libmpx --with-system-zlib --with-isl --enable-__cxa_atexit --disable-libunwind-exceptions --enable-clocale=gnu --disable-libstdcxx-pch --disable-libssp --enable-gnu-unique-object --enable-linker-build-id --enable-lto --enable-plugin --enable-install-libiberty --with-linker-hash-style=gnu --enable-gnu-indirect-function --enable-multilib --disable-werror --enable-checking=release Thread model: posix gcc version 6.3.1 20170109 (GCC) In GNU Emacs 26.0.50.1 (x86_64-unknown-linux-gnu, GTK+ Version 3.22.7) of 2017-02-13 built on the-damned Repository revision: 271dcf8652ccf94d8582b2bcdb26f066d0b946a2 Windowing system distributor 'The X.Org Foundation', version 11.0.11901000 Recent messages: Checking 57 files in /usr/share/emacs/26.0.50/lisp/eshell... Checking 70 files in /usr/share/emacs/26.0.50/lisp/erc... Checking 34 files in /usr/share/emacs/26.0.50/lisp/emulation... Checking 172 files in /usr/share/emacs/26.0.50/lisp/emacs-lisp... Checking 24 files in /usr/share/emacs/26.0.50/lisp/cedet... Checking 57 files in /usr/share/emacs/26.0.50/lisp/calendar... Checking 87 files in /usr/share/emacs/26.0.50/lisp/calc... Checking 103 files in /usr/share/emacs/26.0.50/lisp/obsolete... Checking for load-path shadows...done Message modified; kill anyway? (y or n) y Configured using: 'configure --prefix=/usr --without-libsystemd --without-dbus --without-gconf --without-gsettings --without-selinux --without-threads --without-gpm --without-xaw3d --without-toolkit-scroll-bars --without-m17n-flt --without-libotf --without-imagemagick --without-rsvg --without-png --without-gif --without-tiff --without-jpeg --without-xpm --with-sound=no CFLAGS=-O3' Configured features: NOTIFY ACL GNUTLS LIBXML2 FREETYPE XFT ZLIB GTK3 X11 Important settings: value of $LANG: en_IN.UTF-8 locale-coding-system: utf-8-unix Major mode: C Minor modes in effect: global-magit-file-mode: t magit-file-mode: t diff-auto-refine-mode: t magit-auto-revert-mode: t auto-revert-mode: t global-git-commit-mode: t async-bytecomp-package-mode: t shell-dirtrack-mode: t display-battery-mode: t display-time-mode: t iswitchb-mode: t savehist-mode: t save-place-mode: t tooltip-mode: t global-eldoc-mode: t mouse-wheel-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 column-number-mode: 1 line-number-mode: t transient-mark-mode: t abbrev-mode: t Load-path shadows: /home/sujith/.emacs.d/elpa/emms-20160304.920/tq hides /usr/share/emacs/26.0.50/lisp/emacs-lisp/tq Features: (cc-mode cc-fonts cc-guess cc-menus cc-cmds cc-styles cc-align cc-engine cc-vars cc-defs pp shadow flyspell ispell face-remap emacsbug ibuf-ext ibuffer ibuffer-loaddefs w3m-form w3m-filter w3m-bookmark w3m-tabmenu w3m-session ffap w3m timezone w3m-hist w3m-fb bookmark-w3m w3m-ems wid-edit w3m-ccl ccl w3m-favicon w3m-image w3m-proc w3m-util dired-aux magit-obsolete magit-blame magit-stash magit-bisect magit-remote magit-commit magit-sequence magit-notes magit-worktree magit-branch magit-files magit-refs magit-status magit magit-repos magit-apply magit-wip magit-log magit-diff smerge-mode diff-mode magit-core magit-autorevert autorevert filenotify magit-process magit-margin magit-mode magit-git crm magit-section magit-popup git-commit magit-utils log-edit easy-mmode pcvs-util add-log with-editor async-bytecomp async tramp-sh tramp tramp-compat tramp-loaddefs trampver ucs-normalize shell pcomplete parse-time dash advice mu4e-contrib mu4e desktop frameset mu4e-speedbar speedbar sb-image ezimage dframe mu4e-main mu4e-context mu4e-view cal-menu calendar cal-loaddefs thingatpt browse-url comint ansi-color mu4e-headers mu4e-compose mu4e-draft mu4e-actions ido rfc2368 smtpmail sendmail mu4e-mark mu4e-message flow-fill html2text mu4e-proc mu4e-proc-mu mu4e-utils doc-view jka-compr image-mode mu4e-lists mu4e-vars message puny format-spec rfc822 mml mml-sec epa derived epg gnus-util rmail rmail-loaddefs mm-decode mm-bodies mm-encode mail-parse rfc2231 rfc2047 rfc2045 mm-util ietf-drums mail-prsvr mailabbrev mail-utils gmm-utils mailheader hl-line cl mu4e-meta battery time dired-x dired dired-loaddefs edmacro kmacro xcscope ring server iswitchb savehist saveplace finder-inf info package epg-config url-handlers url-parse auth-source cl-seq eieio eieio-core cl-macs eieio-loaddefs password-cache url-vars seq byte-opt subr-x gv bytecomp byte-compile cl-extra help-mode easymenu cconv cl-loaddefs pcase cl-lib 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 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 inotify dynamic-setting font-render-setting move-toolbar gtk x-toolkit x multi-tty make-network-process emacs) Memory information: ((conses 16 1112940 3463) (symbols 48 36857 5) (miscs 40 96 357) (strings 32 73343 16247) (string-bytes 1 2484237) (vectors 16 59639) (vector-slots 8 1342999 94842) (floats 8 475 158) (intervals 56 127752 56) (buffers 976 21))
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