From: Duncan Bayne <duncan@bayne.id.au>
To: 74337@debbugs.gnu.org
Subject: bug#74337: 29.4; Visiting a file with Unicode emojis is very slow
Date: Wed, 13 Nov 2024 23:13:26 +1100 [thread overview]
Message-ID: <865xore32f.fsf@bayne.id.au> (raw)
It takes ~ 1.5 minutes to visit even a small file containing Unicode
emojis, and CPU utilization goes to 100% (of a single core) while it is
loading.
Reproduction steps:
1. Open Emacs with `emacs -Q`.
2. Visit the attached file (known-hosts).
3. Observe that it takes > 1 minute to visit the file.
In GNU Emacs 29.4 (build 1, amd64-portbld-freebsd14.1, GTK+ Version
3.24.43, cairo version 1.17.4)
Windowing system distributor 'The X.Org Foundation', version 11.0.12101013
System Description: 14.1-RELEASE
Configured using:
'configure --disable-build-details --localstatedir=/var --without-gconf
--without-libsystemd --without-selinux --with-x --enable-acl
--with-cairo --with-dbus --with-gif --with-gnutls --with-gsettings
--with-x-toolkit=gtk3 --with-harfbuzz --with-jpeg --with-json
--with-file-notification=kqueue --with-lcms2 --without-m17n-flt
--without-imagemagick --with-mailutils --with-modules
--without-native-compilation --with-sound=oss --without-libotf
--without-pgtk --with-png --with-toolkit-scroll-bars --with-sqlite3
--with-rsvg --with-threads --with-tiff --with-tree-sitter --with-webp
--without-xft --with-xim --with-xml2 --with-xpm --without-xwidgets
--x-libraries=/usr/local/lib --x-includes=/usr/local/include
--prefix=/usr/local --mandir=/usr/local/share/man
--disable-silent-rules --infodir=/usr/local/share/emacs/info/
--build=amd64-portbld-freebsd14.1 'CFLAGS=-O2 -pipe
-fstack-protector-strong -isystem /usr/local/include
-fno-strict-aliasing ' 'CPPFLAGS=-isystem /usr/local/include' 'LDFLAGS=
-fstack-protector-strong -L/usr/local/lib ''
Configured features:
ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GSETTINGS HARFBUZZ JPEG JSON
LCMS2 LIBXML2 MODULES NOTIFY KQUEUE PDUMPER PNG RSVG SOUND SQLITE3
THREADS TIFF TOOLKIT_SCROLL_BARS TREE_SITTER WEBP X11 XDBE XIM XINPUT2
XPM GTK3 ZLIB
Important settings:
value of $LC_ALL: en_AU.UTF-8
value of $LANG: C.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
show-paren-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
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:
None found.
Features:
(shadow sort mail-extr emacsbug message mailcap yank-media puny dired
dired-loaddefs rfc822 mml mml-sec password-cache epa derived epg rfc6068
epg-config gnus-util text-property-search time-date subr-x mm-decode
mm-bodies mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader
cl-loaddefs cl-lib sendmail rfc2047 rfc2045 ietf-drums mm-util
mail-prsvr mail-utils rmc iso-transl tooltip cconv eldoc paren electric
uniquify ediff-hook vc-hooks lisp-float-type elisp-mode 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 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 kqueue lcms2
dynamic-setting system-font-setting font-render-setting cairo
move-toolbar gtk x-toolkit xinput2 x multi-tty make-network-process
emacs)
Memory information:
((conses 16 37686 5905)
(symbols 48 5447 3)
(strings 32 13482 2173)
(string-bytes 1 385060)
(vectors 16 9591)
(vector-slots 8 160240 11894)
(floats 8 21 23)
(intervals 56 273 0)
(buffers 984 11))
--
Duncan Bayne
+61 420 817 082 | gemini://duncan.bayne.id.au/
I usually check my mail every 24 - 48 hours. If there's something
urgent going on, please send me an SMS or call me.
next reply other threads:[~2024-11-13 12:13 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-11-13 12:13 Duncan Bayne [this message]
2024-11-13 15:10 ` bug#74337: 29.4; Visiting a file with Unicode emojis is very slow Eli Zaretskii
[not found] ` <861pzeevpy.fsf@bayne.id.au>
2024-11-13 20:33 ` Eli Zaretskii
2024-11-13 20:47 ` Duncan Bayne
2024-11-14 6:41 ` Eli Zaretskii
2024-11-14 11:42 ` Duncan Bayne
2024-11-14 14:31 ` Eli Zaretskii
2024-11-14 14:49 ` Robert Pluim
2024-11-16 11:29 ` Duncan Bayne
2024-11-16 13:22 ` Eli Zaretskii
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