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Subject: bug#44610: 27.1; Keyboard Macro Performance Problem
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This bug report comes from a discussion on Emacs reddit.
Start with a blank buffer and create about ~300 lines of the string:
ffffffffffffffffffff (pppppppppppppppppppp);
This will be turned into:
'ffffffffffffffffffff':
That can be done using the following keyboard macro: M-m ' M-f ' : C-k
C-n
You can apply that to every line in the buffer using C-u 300 f4.
Now here's the strange bit. In a fundamental-mode buffer this is
extremely fast, nearly instantaneous. But, in a python-mode buffer it
takes 20 to 30 seconds. If the mode is c-mode then it is also much
slower than fundamental-mode. It will also exceed the variable binding
depth in some cases. Oddly it is faster if you use forward-line instead
of C-n.
Here is the original thread:
https://www.reddit.com/r/emacs/comments/joeno5/anyway_to_speed_up_macros_in=
_emacs/
I understand it might not be worth fixing if it's a corner case.
BR,
Robert Thorpe
In GNU Emacs 27.1 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.22, cair=
o version 1.17.3)
of 2020-08-28 built on juergen
Windowing system distributor 'The X.Org Foundation', version 11.0.12009000
System Description: Arch Linux
Recent messages:
Keyboard macro defined
Commands: d, s, x, u; f, o, 1, 2, m, v; ~, %; q to quit; ? for help.
Mark set [2 times]
Saved text until "fffffffffffff (pppppppppppppppppppp);
"
Mark set [2 times]
Defining kbd macro...
You can run the command =E2=80=98forward-line=E2=80=99 with M-x fo-lin RET
Keyboard macro defined
Can=E2=80=99t guess python-indent-offset, using defaults: 4
Configured using:
'configure --prefix=3D/usr --sysconfdir=3D/etc --libexecdir=3D/usr/lib
--localstatedir=3D/var --with-x-toolkit=3Dgtk3 --with-xft --with-wide-int
--with-modules --with-cairo --with-harfbuzz 'CFLAGS=3D-march=3Dx86-64
-mtune=3Dgeneric -O2 -pipe -fno-plt' CPPFLAGS=3D-D_FORTIFY_SOURCE=3D2
LDFLAGS=3D-Wl,-O1,--sort-common,--as-needed,-z,relro,-z,now'
Configured features:
XPM JPEG TIFF GIF PNG RSVG CAIRO SOUND GPM DBUS GSETTINGS GLIB NOTIFY
INOTIFY ACL GNUTLS LIBXML2 FREETYPE HARFBUZZ M17N_FLT LIBOTF ZLIB
TOOLKIT_SCROLL_BARS GTK3 X11 XDBE XIM MODULES THREADS LIBSYSTEMD JSON
PDUMPER LCMS2 GMP
Important settings:
value of $LANG: en_GB.UTF-8
locale-coding-system: utf-8-unix
Major mode: Python
Minor modes in effect:
shell-dirtrack-mode: t
dynamic-completion-mode: t
tooltip-mode: t
global-eldoc-mode: t
eldoc-mode: t
electric-indent-mode: t
mouse-wheel-mode: t
menu-bar-mode: t
file-name-shadow-mode: t
global-font-lock-mode: t
font-lock-mode: t
auto-composition-mode: t
auto-encryption-mode: t
auto-compression-mode: t
column-number-mode: t
line-number-mode: t
global-visual-line-mode: t
visual-line-mode: t
transient-mark-mode: t
Load-path shadows:
None found.
Features:
(shadow mail-extr emacsbug sendmail eieio-opt cl-extra speedbar sb-image
ezimage dframe find-func thingatpt help-fns radix-tree help-mode python
tramp-sh tramp tramp-loaddefs trampver tramp-integration files-x
tramp-compat shell pcomplete parse-time iso8601 ls-lisp comint ring
ansi-color cc-mode cc-fonts cc-guess cc-menus cc-cmds cc-styles cc-align
cc-engine cc-vars cc-defs dired-aux autorevert filenotify calc-alg
calc-ext calc-menu calc calc-loaddefs calc-macs view sort disp-table
tetris gamegrid rmailsum misearch multi-isearch noutline outline
easy-mmode shr-color color shr url-cookie url-domsuf url-util url-parse
auth-source cl-seq eieio eieio-core cl-macs eieio-loaddefs json map
url-vars svg xml dom browse-url qp rmailout rmailmm message rmc puny
dired-x dired dired-loaddefs format-spec rfc822 mml mml-sec
password-cache epa derived epg epg-config gnus-util time-date subr-x seq
byte-opt gv bytecomp byte-compile cconv mm-decode mm-bodies mm-encode
mailabbrev gmm-utils mailheader mail-parse rfc2231 rmail rmail-loaddefs
rfc2047 rfc2045 ietf-drums mm-util mail-prsvr mail-utils bookmark
easymenu text-property-search pp server completion avoid misc edmacro
kmacro cl-loaddefs cl-lib 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
tab-bar menu-bar rfn-eshadow isearch timer select scroll-bar mouse
jit-lock font-lock syntax facemenu font-core term/tty-colors frame
minibuffer 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 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 cairo move-toolbar gtk x-toolkit x multi-tty
make-network-process emacs)
Memory information:
((conses 16 212016 51202)
(symbols 48 17470 1)
(strings 32 53646 2929)
(string-bytes 1 1713027)
(vectors 16 29359)
(vector-slots 8 1024997 53850)
(floats 8 262 286)
(intervals 56 13457 0)
(buffers 1000 44))
Content-Disposition: inline Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-Mailer: MIME-tools 5.505 (Entity 5.505) Content-Type: text/plain; charset=utf-8 X-Loop: help-debbugs@HIDDEN From: help-debbugs@HIDDEN (GNU bug Tracking System) To: Robert Thorpe <rt@HIDDEN> Subject: bug#44610: Acknowledgement (27.1; Keyboard Macro Performance Problem) Message-ID: <handler.44610.B.16052359075919.ack <at> debbugs.gnu.org> References: <87d00irmu7.fsf@HIDDEN> X-Gnu-PR-Message: ack 44610 X-Gnu-PR-Package: emacs Reply-To: 44610 <at> debbugs.gnu.org Date: Fri, 13 Nov 2020 02:52:02 +0000 Thank you for filing a new bug report with debbugs.gnu.org. This is an automatically generated reply to let you know your message has been received. Your message is being forwarded to the package maintainers and other interested parties for their attention; they will reply in due course. Your message has been sent to the package maintainer(s): bug-gnu-emacs@HIDDEN If you wish to submit further information on this problem, please send it to 44610 <at> debbugs.gnu.org. Please do not send mail to help-debbugs@HIDDEN unless you wish to report a problem with the Bug-tracking system. --=20 44610: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=3D44610 GNU Bug Tracking System Contact help-debbugs@HIDDEN with problems
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Subject: bug#44610: 27.1; Keyboard Macro Performance Problem
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Modes are programs and their checks slow down the macro execution=2E If it =
happens to me I will simple temporarily switch the mode to fundamental=2E
Maybe there is or could be an option that macro executes only in fundament=
al mode and then automatically turns on whatever other mode was there=2E
Jean
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Subject: bug#44610: 27.1; Keyboard Macro Performance Problem
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From: Eli Zaretskii <eliz@HIDDEN>
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> From: Robert Thorpe <rt@HIDDEN>
> Date: Fri, 13 Nov 2020 02:51:12 +0000
>
>
> This bug report comes from a discussion on Emacs reddit.
>
> Start with a blank buffer and create about ~300 lines of the string:
>
> ffffffffffffffffffff (pppppppppppppppppppp);
>
> This will be turned into:
>
> 'ffffffffffffffffffff':
>
> That can be done using the following keyboard macro: M-m ' M-f ' : C-k
> C-n
>
> You can apply that to every line in the buffer using C-u 300 f4.
>
> Now here's the strange bit. In a fundamental-mode buffer this is
> extremely fast, nearly instantaneous. But, in a python-mode buffer it
> takes 20 to 30 seconds. If the mode is c-mode then it is also much
> slower than fundamental-mode. It will also exceed the variable binding
> depth in some cases. Oddly it is faster if you use forward-line instead
> of C-n.
I suggest to produce and present a profile of this. Invoke this macro
after "M-x profiler-start RET RET", then "M-x profiler-report RET",
expand the profile fully by "C-u RET" on the top line, and post the
result here. That should give some clues.
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* Eli Zaretskii <eliz@HIDDEN> [2020-11-14 17:27]:
> > From: Robert Thorpe <rt@HIDDEN>
> > Date: Fri, 13 Nov 2020 02:51:12 +0000
> >
> >
> > This bug report comes from a discussion on Emacs reddit.
> >
> > Start with a blank buffer and create about ~300 lines of the string:
> >
> > ffffffffffffffffffff (pppppppppppppppppppp);
> >
> > This will be turned into:
> >
> > 'ffffffffffffffffffff':
> >
> > That can be done using the following keyboard macro: M-m ' M-f ' : C-k
> > C-n
> >
> > You can apply that to every line in the buffer using C-u 300 f4.
> >
> > Now here's the strange bit. In a fundamental-mode buffer this is
> > extremely fast, nearly instantaneous. But, in a python-mode buffer it
> > takes 20 to 30 seconds. If the mode is c-mode then it is also much
> > slower than fundamental-mode. It will also exceed the variable binding
> > depth in some cases. Oddly it is faster if you use forward-line instead
> > of C-n.
>
> I suggest to produce and present a profile of this. Invoke this macro
> after "M-x profiler-start RET RET", then "M-x profiler-report RET",
> expand the profile fully by "C-u RET" on the top line, and post the
> result here. That should give some clues.
That is great advise to learn from. Macro took just about less than 2
seconds on my notebook Lenovo Thinkpad T410.
I am not the initial reporter. I have tested it in python-mode in
plain emacs -Q with the latest development version:
- command-execute 20,601,881 99%
- call-interactively 20,601,881 99%
- funcall-interactively 19,934,160 96%
- kmacro-end-or-call-macro 15,337,767 74%
- kmacro-call-macro 15,337,767 74%
- call-last-kbd-macro 15,242,727 73%
- command-execute 15,102,838 73%
- call-interactively 15,021,006 72%
- funcall-interactively 14,985,294 72%
- next-line 13,970,433 67%
- line-move 13,968,321 67%
- line-move-visual 12,842,225 62%
- vertical-motion 9,925,619 48%
- jit-lock-function 9,925,619 48%
- jit-lock-fontify-now 9,925,619 48%
- jit-lock--run-functions 7,165,300 34%
- run-hook-wrapped 7,157,012 34%
- #<compiled 0x5b100c193163db5> 7,157,012 34%
- font-lock-fontify-region 7,157,012 34%
- font-lock-default-fontify-region 7,153,844 34%
- font-lock-fontify-keywords-region 5,169,903 25%
#<compiled 0x19a45f465d8aaf17> 369,664 1%
#<compiled -0x1210e8980f7ecafc> 308,861 1%
- python--font-lock-f-strings 306,448 1%
syntax-ppss 11,536 0%
- font-lock-fontify-syntactically-region 1,975,653 9%
- python-font-lock-syntactic-face-function 1,889,981 9%
- python-info-docstring-p 1,878,263 9%
- python-nav-backward-sexp 1,150,110 5%
- python-nav-forward-sexp 1,144,830 5%
- python-nav--forward-sexp 1,144,830 5%
- python-info-beginning-of-block-p 519,389 2%
- python-info-statement-starts-block-p 407,940 1%
- python-nav-beginning-of-statement 100,032 0%
- syntax-ppss 46,400 0%
#<compiled 0x1c65d0f034163548> 4,320 0%
- python-info-line-ends-backslash-p 45,344 0%
- syntax-ppss 45,344 0%
#<compiled 0x1c65d0f034163548> 4,320 0%
- python-info-beginning-of-statement-p 103,161 0%
- python-nav-beginning-of-statement 103,161 0%
- syntax-ppss 54,825 0%
make-byte-code 4,377 0%
- python-info-line-ends-backslash-p 35,904 0%
syntax-ppss 35,904 0%
- python-info-current-line-empty-p 307,473 1%
beginning-of-line 4,377 0%
- python-info-end-of-block-p 130,384 0%
- python-info-end-of-statement-p 130,384 0%
- python-nav-end-of-statement 130,384 0%
syntax-ppss 91,472 0%
- python-info-line-ends-backslash-p 34,768 0%
syntax-ppss 34,768 0%
- python-info-beginning-of-statement-p 116,336 0%
- python-nav-beginning-of-statement 116,336 0%
- python-info-line-ends-backslash-p 55,648 0%
syntax-ppss 55,648 0%
syntax-ppss 44,112 0%
- python-nav-beginning-of-statement 53,456 0%
- python-info-line-ends-backslash-p 21,040 0%
syntax-ppss 21,040 0%
syntax-ppss 19,984 0%
- python-syntax-context-type 9,504 0%
syntax-ppss 9,504 0%
- python-info-assignment-statement-p 314,499 1%
- python-nav-beginning-of-statement 19,587 0%
- python-info-line-ends-backslash-p 7,392 0%
syntax-ppss 7,392 0%
syntax-ppss 6,336 0%
- python-nav-beginning-of-statement 36,902 0%
- syntax-ppss 22,595 0%
#<compiled 0x1c65d0f034163548> 5,859 0%
- python-info-line-ends-backslash-p 8,448 0%
syntax-ppss 8,448 0%
syntax-ppss 27,216 0%
replace-regexp-in-string 2,112 0%
font-lock-unfontify-region 4,144 0%
- run-with-timer 2,730,692 13%
- apply 2,730,692 13%
- run-at-time 2,729,636 13%
- timer-activate 2,717,252 13%
- timer--activate 2,716,196 13%
- timer--time-less-p 2,716,196 13%
timer--time 36,054 0%
time-less-p 24,036 0%
- timer-set-time 12,384 0%
timer--time-setter 12,384 0%
make-byte-code 5,859 0%
- posn-at-point 2,878,318 13%
file-remote-p 2,360,868 11%
- jit-lock-function 340,326 1%
- jit-lock-fontify-now 340,326 1%
- jit-lock--run-functions 335,086 1%
- run-hook-wrapped 330,942 1%
- #<compiled 0x5b100c193163db5> 330,942 1%
- font-lock-fontify-region 330,942 1%
- font-lock-default-fontify-region 329,886 1%
- font-lock-fontify-keywords-region 202,469 0%
#<compiled 0x19a45f465d8aaf17> 15,872 0%
- python--font-lock-f-strings 15,456 0%
syntax-ppss 3,168 0%
#<compiled -0x1210e8980f7ecafc> 12,288 0%
- font-lock-fontify-syntactically-region 123,273 0%
- python-font-lock-syntactic-face-function 99,145 0%
- python-info-docstring-p 99,145 0%
- python-nav-backward-sexp 49,329 0%
- python-nav-forward-sexp 48,273 0%
- python-nav--forward-sexp 48,273 0%
- python-info-beginning-of-block-p 15,105 0%
python-info-statement-starts-block-p 15,105 0%
- python-nav-beginning-of-statement 12,512 0%
syntax-ppss 8,368 0%
python-info-current-line-empty-p 12,288 0%
- python-syntax-context-type 4,224 0%
syntax-ppss 4,224 0%
- python-info-beginning-of-statement-p 4,144 0%
python-nav-beginning-of-statement 4,144 0%
- python-info-assignment-statement-p 20,784 0%
- python-nav-beginning-of-statement 8,368 0%
- python-info-line-ends-backslash-p 3,168 0%
syntax-ppss 3,168 0%
syntax-ppss 1,056 0%
- python-nav-beginning-of-statement 8,368 0%
syntax-ppss 2,112 0%
- python-info-line-ends-backslash-p 2,112 0%
syntax-ppss 2,112 0%
syntax-ppss 8,368 0%
replace-regexp-in-string 4,144 0%
font-lock-unfontify-region 4,144 0%
- eval 144,979 0%
if 132,784 0%
unless 6,336 0%
- default-line-height 1,089,216 5%
default-font-height 1,089,216 5%
- window-inside-pixel-edges 21,120 0%
- window-edges 15,840 0%
window-current-scroll-bars 11,616 0%
- kill-line 498,749 2%
- kill-region 498,749 2%
- kill-new 424,312 2%
menu-bar-update-yank-menu 340,984 1%
- gui-select-text 74,880 0%
- gui-set-selection 74,880 0%
- gui-backend-set-selection 73,824 0%
- apply 73,824 0%
#<compiled -0x1ef4cefd5124968d> 73,824 0%
- filter-buffer-substring 74,437 0%
- buffer-substring--filter 68,101 0%
- #<compiled -0x1e2a987f6542516b> 68,101 0%
- apply 68,101 0%
- #<compiled 0xd88b599ee0a5190> 63,957 0%
- delete-and-extract-region 21,901 0%
- jit-lock-after-change 9,666 0%
- run-hook-with-args 4,833 0%
- font-lock-extend-jit-lock-region-after-change 4,833 0%
get-text-property 4,833 0%
- self-insert-command 485,032 2%
- python-indent-post-self-insert-function 421,304 2%
- syntax-ppss 421,304 2%
- syntax-propertize 325,688 1%
#<compiled 0x14be23ea75627c25> 311,064 1%
- run-hook-wrapped 1,056 0%
#<compiled -0x10385ae61af9e5a6> 1,056 0%
- electric-indent-post-self-insert-function 22,016 0%
- syntax-ppss 22,016 0%
- syntax-propertize 3,168 0%
- run-hook-wrapped 1,056 0%
#<compiled -0x1038556930f9e5a6> 1,056 0%
- jit-lock-after-change 12,432 0%
run-hook-with-args 4,144 0%
- undo-auto--undoable-change 32 0%
- undo-auto--boundary-ensure-timer 32 0%
- run-at-time 32 0%
- timer-set-time 32 0%
timer--time-setter 32 0%
- jit-lock--antiblink-post-command 113,809 0%
- syntax-ppss 79,729 0%
vconcat 4,833 0%
syntax-propertize 2,112 0%
- run-with-idle-timer 29,936 0%
- timer-activate-when-idle 25,712 0%
- timer--activate 25,712 0%
timer--time-less-p 25,712 0%
- timer-set-idle-time 4,224 0%
timer--time-setter 4,224 0%
- undo-auto--add-boundary 4,224 0%
undo-auto--boundaries 4,224 0%
- execute-extended-command 4,593,217 22%
- command-execute 3,494,291 16%
- call-interactively 3,494,291 16%
- funcall-interactively 3,494,275 16%
- profiler-report 3,491,303 16%
profiler-memory-running-p 5,863 0%
- profiler-start 2,972 0%
message 2,341 0%
- sit-for 745,896 3%
- redisplay 744,768 3%
- redisplay_internal (C function) 277,761 1%
- tool-bar-make-keymap 271,923 1%
- tool-bar-make-keymap-1 271,923 1%
- mapcar 271,923 1%
- #<compiled -0xe8295ef54b23da6> 271,923 1%
- eval 17,416 0%
- find-image 17,416 0%
image-search-load-path 17,416 0%
- find-image 1,048 0%
image-search-load-path 1,048 0%
kill-this-buffer-enabled-p 1,024 0%
- menu-bar-update-buffers 672 0%
menu-bar-update-buffers-1 672 0%
- substitute-command-keys 21 0%
generate-new-buffer 21 0%
- read-event 16 0%
- command-execute 16 0%
call-interactively 16 0%
- execute-extended-command--shorter 195,259 0%
- completion-try-completion 187,931 0%
- completion--nth-completion 186,883 0%
- completion--some 186,883 0%
- #<compiled 0x81c0cf17cf07668> 185,827 0%
- completion-pcm-try-completion 184,779 0%
- completion-pcm--merge-try 148,675 0%
- completion-pcm--merge-completions 23,355 0%
string-match 2,099 0%
completion-pcm--pattern->regex 2,096 0%
completion-pcm--pattern->string 1,048 0%
- completion-pcm--find-all-completions 35,048 0%
- completion-pcm--all-completions 20,568 0%
completion-pcm--pattern->regex 1,048 0%
completion-pcm--optimize-pattern 1,056 0%
completion-pcm--string->pattern 1,024 0%
- execute-extended-command--shorter-1 7,328 0%
- execute-extended-command--shorter-1 5,232 0%
- execute-extended-command--shorter-1 2,096 0%
- execute-extended-command--shorter-1 2,096 0%
mapcar 1,048 0%
- execute-extended-command--shorter-1 1,048 0%
- execute-extended-command--shorter-1 1,048 0%
mapcar 1,048 0%
mapcar 1,048 0%
commandp 5,863 0%
#<compiled -0x1910b770d84f49d5> 42 0%
- handle-focus-in 2,112 0%
- #<compiled 0x189e2a0a0dde442> 2,112 0%
- apply 2,112 0%
- blink-cursor--rescan-frames 2,112 0%
- blink-cursor-check 2,112 0%
- blink-cursor--should-blink 2,112 0%
frame-focus-state 2,112 0%
- digit-argument 1,064 0%
- universal-argument--mode 1,064 0%
set-transient-map 1,064 0%
- byte-code 667,721 3%
- read-extended-command 667,721 3%
- completing-read 667,721 3%
- completing-read-default 667,721 3%
- read-from-minibuffer 663,459 3%
- redisplay_internal (C function) 208,291 1%
- tool-bar-make-keymap 206,571 1%
- tool-bar-make-keymap-1 206,571 1%
- mapcar 206,571 1%
- #<compiled -0xe8295ef54b23da6> 206,571 1%
- eval 1,048 0%
- find-image 1,048 0%
image-search-load-path 1,048 0%
- find-image 1,048 0%
image-search-load-path 1,048 0%
- menu-bar-update-buffers 672 0%
menu-bar-update-buffers-1 672 0%
- command-execute 1,320 0%
- call-interactively 1,320 0%
- funcall-interactively 1,080 0%
- self-insert-command 1,080 0%
#<compiled 0x23be74412ab8ae> 1,048 0%
- undo-auto--undoable-change 32 0%
- undo-auto--boundary-ensure-timer 32 0%
- run-at-time 32 0%
- timer-set-time 32 0%
timer--time-setter 32 0%
+ redisplay_internal (C function) 33,424 0%
+ internal-echo-keystrokes-prefix 15,490 0%
+ timer-event-handler 2,662 0%
... 0 0%
X-Loop: help-debbugs@HIDDEN
Subject: bug#44610: 27.1; Keyboard Macro Performance Problem
Resent-From: Eli Zaretskii <eliz@HIDDEN>
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on Sat, 14 Nov 2020 19:03:11 +0300)
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> Date: Sat, 14 Nov 2020 19:03:11 +0300
> From: Jean Louis <bugs@HIDDEN>
> Cc: Robert Thorpe <rt@HIDDEN>,
> 44610 <at> debbugs.gnu.org
>
> I am not the initial reporter. I have tested it in python-mode in
> plain emacs -Q with the latest development version:
>
> - command-execute 20,601,881 99%
> - call-interactively 20,601,881 99%
> - funcall-interactively 19,934,160 96%
> - kmacro-end-or-call-macro 15,337,767 74%
> - kmacro-call-macro 15,337,767 74%
> - call-last-kbd-macro 15,242,727 73%
> - command-execute 15,102,838 73%
> - call-interactively 15,021,006 72%
> - funcall-interactively 14,985,294 72%
> - next-line 13,970,433 67%
> - line-move 13,968,321 67%
> - line-move-visual 12,842,225 62%
> - vertical-motion 9,925,619 48%
> - jit-lock-function 9,925,619 48%
> - jit-lock-fontify-now 9,925,619 48%
> - jit-lock--run-functions 7,165,300 34%
> - run-hook-wrapped 7,157,012 34%
> - #<compiled 0x5b100c193163db5> 7,157,012 34%
> - font-lock-fontify-region 7,157,012 34%
> - font-lock-default-fontify-region 7,153,844 34%
> - font-lock-fontify-keywords-region 5,169,903 25%
Thanks, this seems to indicate that the mode's fontifications take the
lion's share of the time. Which explains why Fundamental mode doesn't
suffer from this problem.
X-Loop: help-debbugs@HIDDEN
Subject: bug#44610: 27.1; Keyboard Macro Performance Problem
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on Sat, 14 Nov 2020 19:03:11 +0300)
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> Date: Sat, 14 Nov 2020 19:03:11 +0300
> From: Jean Louis <bugs@HIDDEN>
> Cc: Robert Thorpe <rt@HIDDEN>,
> 44610 <at> debbugs.gnu.org
>
> I am not the initial reporter. I have tested it in python-mode in
> plain emacs -Q with the latest development version:
>
> - command-execute 20,601,881 99%
> - call-interactively 20,601,881 99%
Btw, did you activate the cpu profiler or the memory profiler? It
looks like it was the latter, in which case the percents might be
skewed, as the frequency of probing the program counter is not
constant.
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