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* bug#44007: 26.3; Strange shell mode performance
@ 2020-10-15  9:53 Herman, Géza
  2020-10-15 14:10 ` Eli Zaretskii
  0 siblings, 1 reply; 23+ messages in thread
From: Herman, Géza @ 2020-10-15  9:53 UTC (permalink / raw)
  To: 44007

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))






^ permalink raw reply	[flat|nested] 23+ messages in thread

end of thread, other threads:[~2023-11-06 22:47 UTC | newest]

Thread overview: 23+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2020-10-15  9:53 bug#44007: 26.3; Strange shell mode performance Herman, Géza
2020-10-15 14:10 ` Eli Zaretskii
2020-10-15 14:34   ` Herman, Geza
2020-10-16  8:25     ` Andreas Röhler
2022-01-28 15:26     ` Lars Ingebrigtsen
2022-01-28 22:33       ` Herman, Géza
2022-01-29  6:52         ` Eli Zaretskii
2022-01-29 14:38         ` Lars Ingebrigtsen
2022-01-29 16:10           ` Herman, Géza
2023-11-05 16:46     ` Herman, Géza
2023-11-06 12:08       ` Eli Zaretskii
2023-11-06 12:28         ` Herman, Géza
2023-11-06 13:22           ` Eli Zaretskii
2023-11-06 13:37             ` Herman, Géza
2023-11-06 14:40               ` Eli Zaretskii
2023-11-06 15:00                 ` Herman, Géza
2023-11-06 16:52                   ` Eli Zaretskii
2023-11-06 17:25                     ` Herman, Géza
2023-11-06 22:47               ` Dmitry Gutov
2020-10-16 10:44   ` Herman, Géza
2020-10-16 10:55     ` Eli Zaretskii
2020-10-16 12:23       ` Herman, Géza
2020-10-17 12:48   ` Herman, Géza

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