Package: emacs;
Reported by: Ergus <spacibba <at> aol.com>
Date: Tue, 20 May 2025 23:34:02 UTC
Severity: normal
Tags: fixed
Found in version 31.0.50
Done: Eli Zaretskii <eliz <at> gnu.org>
Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):
From: Ergus <spacibba <at> aol.com> To: bug-gnu-emacs <at> gnu.org Subject: 31.0.50; Performance issue in dired+isearch with dired-isearch-filenames Date: Wed, 21 May 2025 01:33:19 +0200
Hi:
I have been using dired and isearch in a directory with ~8000 files and
emacs became totally non-responsive. It freezed with every letter for
~10 seconds.
I checked my config and it seems that the problem is
`dired-isearch-filenames`. Any non-nil value produces this issue.
I ran with the profiler and it showed that all the time is going in
`next-single-property-change`
86696 91% - command-execute
86696 91% - call-interactively
86695 91% - funcall-interactively
59531 62% - isearch-printing-char
59531 62% - isearch-process-search-char
59531 62% - isearch-process-search-string
59531 62% - isearch-search-and-update
45907 48% - isearch-update
45890 48% - isearch-lazy-highlight-new-loop
45890 48% - redisplay
45854 48% - timer-event-handler
45854 48% - apply
45854 48% - isearch-lazy-highlight-buffer-update
45853 48% - isearch-lazy-highlight-search
45852 48% - isearch-search-string
45852 48% - #<byte-code-function C84>
45852 48% - apply
45852 48% - search-within-boundaries
45778 48% - #<byte-code-function C9F>
45726 48% - mapcar
45722 48% - #<byte-code-function C7B>
45721 48% next-single-property-change
35 0% + seq-min
9 0% make-closure
6 0% delq
40 0% + #<byte-code-function 990>
2 0% + #<byte-code-function F75>
1 0% + isearch-filter-visible
36 0% redisplay_internal (C function)
14 0% + pos-visible-in-window-group-p
2 0% + isearch-message
1 0% + window-max-chars-per-line
13620 14% + isearch-search
4 0% + isearch-message
27143 28% - isearch-del-char
13624 14% - isearch-update
13624 14% - isearch-lazy-highlight-new-loop
13624 14% - redisplay
13622 14% - timer-event-handler
13622 14% - apply
13622 14% - isearch-lazy-highlight-buffer-update
13622 14% - isearch-lazy-highlight-search
13622 14% - isearch-search-string
13622 14% - #<byte-code-function 511>
13622 14% - apply
13622 14% - search-within-boundaries
13602 14% - #<byte-code-function 500>
13584 14% - mapcar
13581 14% - #<byte-code-function 55A>
13578 14% next-single-property-change
10 0% + seq-min
4 0% make-closure
2 0% delq
13 0% + #<byte-code-function 990>
2 0% redisplay_internal (C function)
13519 14% - isearch-search
13519 14% - isearch-search-string
13519 14% - #<byte-code-function 415>
13519 14% - apply
13519 14% - search-within-boundaries
13498 14% - #<byte-code-function 42C>
13486 14% - mapcar
13485 14% - #<byte-code-function C2A>
13482 14% next-single-property-change
5 0% make-closure
3 0% + seq-min
2 0% delq
12 0% + #<byte-code-function 990>
11 0% + isearch-forward
6 0% + isearch-abort
3 0% + dired-next-line
1 0% + dired-previous-line
7498 7% - timer-event-handler
7498 7% - apply
6849 7% - isearch-lazy-highlight-buffer-update
6837 7% - isearch-lazy-highlight-search
6831 7% - isearch-search-string
6810 7% - #<byte-code-function 492>
6810 7% - apply
6810 7% - search-within-boundaries
6802 7% - #<byte-code-function 49D>
6793 7% - mapcar
6793 7% - #<byte-code-function 7A7>
6792 7% next-single-property-change
3 0% + seq-min
3 0% delq
1 0% make-closure
5 0% + #<byte-code-function 990>
15 0% + #<byte-code-function 990>
1 0% char-table-p
1 0% + isearch-search-fun
2 0% + isearch-filter-visible
9 0% + isearch-filter-visible
1 0% + internal--before-save-selected-window
638 0% + isearch-lazy-highlight-start
5 0% + jit-lock-stealth-fontify
3 0% + show-paren-function
3 0% + jit-lock-context--update
362 0% + redisplay_internal (C function)
62 0% Automatic GC
8 0% + tooltip-hide
2 0% + winner-save-old-configurations
2 0% + undo-auto--add-boundary
0 0% ...
In GNU Emacs 31.0.50 (build 4, x86_64-pc-linux-gnu, GTK+ Version
3.24.49, cairo version 1.18.4) of 2025-05-19 built on RTX
Repository revision: b499898a5e6e27ecacfb6a60b22a2289afc589dd
Repository branch: project
System Description: Arch Linux
Configured using:
'configure --prefix=/home/ergo/.local/ --with-mailutils --with-pgtk
--with-modules --with-cairo --with-harfbuzz
--with-native-compilation=aot
'--program-transform-name=s/^ctags$/ctags.emacs/''
Configured features:
ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GPM GSETTINGS HARFBUZZ JPEG
LCMS2 LIBSYSTEMD LIBXML2 MODULES NATIVE_COMP NOTIFY INOTIFY PDUMPER PGTK
PNG RSVG SECCOMP SOUND SQLITE3 THREADS TIFF TOOLKIT_SCROLL_BARS
TREE_SITTER WEBP XIM GTK3 ZLIB
Important settings:
value of $LANG: en_US.UTF-8
locale-coding-system: utf-8-unix
Major mode: Elisp/l
Minor modes in effect:
windmove-mode: t
global-auto-revert-mode: t
recentf-mode: t
electric-pair-mode: t
whitespace-mode: t
flyspell-mode: t
completion-preview-mode: t
diff-hl-margin-local-mode: t
diff-hl-margin-mode: t
diff-hl-mode: t
global-corfu-mode: t
corfu-mode: t
fancy-compilation-mode: t
winner-mode: t
project-multi-mode: t
gtags-mode: t
repeat-mode: t
xterm-mouse-mode: t
tty-tip-mode: t
xclip-mode: t
override-global-mode: t
save-place-mode: t
delete-selection-mode: t
savehist-mode: t
global-display-fill-column-indicator-mode: t
display-fill-column-indicator-mode: t
global-display-line-numbers-mode: t
display-line-numbers-mode: t
which-key-mode: t
tooltip-mode: t
eldoc-mode: t
show-paren-mode: t
electric-indent-mode: t
mouse-wheel-mode: t
file-name-shadow-mode: t
context-menu-mode: t
global-font-lock-mode: t
font-lock-mode: t
blink-cursor-mode: t
minibuffer-regexp-mode: t
size-indication-mode: t
column-number-mode: t
line-number-mode: t
indent-tabs-mode: t
transient-mark-mode: t
auto-composition-mode: t
auto-encryption-mode: t
auto-compression-mode: t
Load-path shadows:
/mnt/casa/gits/emacs_clones/gtags-mode/gtags-mode hides /home/ergo/.config/emacs/elpa/gtags-mode-1.8.6/gtags-mode
/home/ergo/.config/emacs/elpa/transient-20250516.1031/transient hides /home/ergo/.local/share/emacs/31.0.50/lisp/transient
Features:
(shadow sort mail-extr emacsbug lisp-mnt windmove jka-compr find-func
cl-print dired-subtree dired-hacks-utils dired-aux dash help-fns
radix-tree mc-edit-lines mc-hide-unmatched-lines-mode mc-mark-more
sgml-mode facemenu dom mc-cycle-cursors multiple-cursors-core advice
comp comp-cstr warnings rect autorevert filenotify recentf tree-widget
ffap thingatpt misearch multi-isearch tramp-cache time-stamp tramp-sh
tramp trampver tramp-integration tramp-message tramp-compat shell
pcomplete parse-time iso8601 format-spec tramp-loaddefs vc-git elec-pair
whitespace flyspell-correct flyspell ispell completion-preview
diff-hl-margin diff-hl-dired diff-hl log-view log-edit message sendmail
yank-media puny dired-x dired dired-loaddefs rfc822 mml mml-sec epa
derived epg rfc6068 epg-config gnus-util time-date mm-decode mm-bodies
mm-encode mail-parse rfc2231 rfc2047 rfc2045 mm-util ietf-drums
mail-prsvr mailabbrev mail-utils gmm-utils mailheader add-log pcvs-util
vc-dir ewoc vc vc-dispatcher diff-mode track-changes corfu
fancy-compilation compile text-property-search comint ansi-osc
ansi-color comp-run comp-common winner cus-edit pp cus-start cus-load
wid-edit project-multi-mode gtags-mode files-x xref project ring
term/tmux term/xterm xterm init rx repeat cape compat use-package-ensure
package browse-url xdg url url-proxy url-privacy url-expand url-methods
url-history url-cookie generate-lisp-file url-domsuf url-util mailcap
url-handlers url-parse auth-source eieio eieio-core cl-macs icons
password-cache json subr-x map url-vars use-package-diminish xt-mouse
tty-tip xclip edmacro kmacro byte-opt use-package-bind-key bind-key
cl-extra help-mode simple-16-theme saveplace delsel savehist easy-mmode
display-fill-column-indicator display-line-numbers diminish which-key
cl-seq use-package-core cl-loaddefs cl-lib bytecomp byte-compile gv
disp-table info arduino-cli-mode-autoloads auctex-autoloads tex-site
avy-zap-autoloads avy-autoloads benchmark-init-autoloads
bufferlo-autoloads caml-autoloads cape-autoloads clang-format-autoloads
cobol-mode-autoloads compile-multi-autoloads compiler-explorer-autoloads
corfu-autoloads crdt-autoloads csv-mode-autoloads d-mode-autoloads
dape-autoloads deadgrep-autoloads debbugs-autoloads diff-hl-autoloads
diminish-autoloads dired-sidebar-autoloads dired-subtree-autoloads
dired-hacks-utils-autoloads dumb-jump-autoloads e2ansi-autoloads
eglot-booster-autoloads emamux-autoloads eshell-toggle-autoloads
esup-autoloads evil-collection-autoloads annalist-autoloads
evil-leader-autoloads evil-autoloads face-explorer-autoloads
fancy-compilation-autoloads flx-autoloads flymake-nasm-autoloads
flymake-quickdef-autoloads flyspell-correct-autoloads
git-commit-ts-mode-autoloads git-modes-autoloads
git-timemachine-autoloads gnuplot-autoloads goto-chg-autoloads
groovy-mode-autoloads gtags-mode-autoloads haskell-mode-autoloads
highlight-indent-guides-autoloads i3wm-config-mode-autoloads
ibuffer-sidebar-autoloads iedit-autoloads imenu-list-autoloads
julia-ts-mode-autoloads julia-mode-autoloads languagetool-autoloads
lice-autoloads lorem-ipsum-autoloads lua-mode-autoloads magit-autoloads
magit-section-autoloads llama-autoloads move-dup-autoloads
multiple-cursors-autoloads mutt-mode-autoloads nasm-mode-autoloads
neotree-autoloads nftables-mode-autoloads nginx-mode-autoloads
notmuch-autoloads objed-autoloads phi-search-autoloads
pkgbuild-mode-autoloads plz-autoloads popup-autoloads
protobuf-ts-mode-autoloads scopeline-autoloads shell-command+-autoloads
slime-autoloads macrostep-autoloads sphinx-mode-autoloads f-autoloads
s-autoloads dash-autoloads spinner-autoloads ssh-config-mode-autoloads
string-inflection-autoloads sudo-edit-autoloads systemd-autoloads
tmux-mode-autoloads transient-autoloads urgrep-autoloads vdiff-autoloads
hydra-autoloads lv-autoloads vterm-toggle-autoloads vterm-autoloads
vundo-autoloads with-editor-autoloads xclip-autoloads
yasnippet-snippets-autoloads yasnippet-autoloads early-init rmc
iso-transl tooltip cconv eldoc paren electric uniquify ediff-hook
vc-hooks lisp-float-type elisp-mode mwheel term/pgtk-win pgtk-win
term/common-win touch-screen pgtk-dnd tool-bar dnd fontset image
regexp-opt fringe tabulated-list replace newcomment text-mode lisp-mode
prog-mode register page tab-bar menu-bar rfn-eshadow isearch easymenu
timer select scroll-bar mouse jit-lock font-lock syntax font-core
term/tty-colors frame minibuffer nadvice seq simple cl-generic
indonesian philippine 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 emoji-zwj charscript charprop case-table epa-hook
jka-cmpr-hook help abbrev obarray oclosure cl-preloaded button loaddefs
theme-loaddefs faces cus-face macroexp files window text-properties
overlay sha1 md5 base64 format env code-pages mule custom widget keymap
hashtable-print-readable backquote threads dbusbind inotify
dynamic-setting system-font-setting font-render-setting cairo gtk pgtk
lcms2 multi-tty move-toolbar make-network-process tty-child-frames
native-compile emacs)
Memory information:
((conses 16 348255 236056) (symbols 48 21674 0)
(strings 32 85000 11286) (string-bytes 1 2720636) (vectors 16 38169)
(vector-slots 8 1104566 168128) (floats 8 143 137)
(intervals 56 14651 3188) (buffers 1064 19))
GNU bug tracking system
Copyright (C) 1999 Darren O. Benham,
1997,2003 nCipher Corporation Ltd,
1994-97 Ian Jackson.