From: Drew Adams <drew.adams@oracle.com>
To: Eli Zaretskii <eliz@gnu.org>
Cc: 14786@debbugs.gnu.org
Subject: bug#14786: 24.3.50; `field-end' is now very slow
Date: Thu, 4 Jul 2013 13:57:52 -0700 (PDT) [thread overview]
Message-ID: <029969a6-cd0e-45c9-b778-57b5daf98c2a@default> (raw)
In-Reply-To: <<83sizuz791.fsf@gnu.org>>
[-- Attachment #1: Type: text/plain, Size: 11326 bytes --]
> > I put the cursor on, say, the first file or dir name in a large Dired
> > buffer (1860 lines). I do `M-: (field-end nil)'.
> >
> > In Emacs 22, 23, and even 24.3, the result appears immediately - no
> > perceptible delay. In recent Emacs 24 (e.g., this build), the result
> > appears after several seconds - 3 to 4 sec.
>
> I cannot reproduce this with yesterday's trunk. Does this happen for
> you in "emacs -Q"?
Sorry, the description was incomplete.
1. emacs -Q
2. Load library dired-details.el, from Emacs Wiki:
http://www.emacswiki.org/emacs/download/dired-details.el
3. C-x d ; in some directory that has lots of files
4. M-x dired-details-toggle
5. M-x dired-details-toggle ; (optional, so you see all info)
6. Position the cursor on a file or dir name near the beginning of
the list.
7. M-: (field-end nil)
The result appears after a few seconds (I'm guessing about 4 sec
in the directory I used).
Do the same thing in previous Emacs versions (including as recent
as 24.3, at least), and the result appears immediately.
I tried `M-x profiler-start', then `M-: (field-end nil)', then
`M-x profiler-report', then `M-x profiler-stop'. Then I wrote each
buffer to a file using C-x C-w. The files are attached.
This is what I saw in *Memory-Profiler-Report...*:
- command-execute 42,437,777 0%
- call-interactively 42,437,777 0%
- byte-code 39,515,026 -4%
- read-extended-command 19,764,987 -2%
- completing-read 19,764,987 -2%
- completing-read-default 19,764,987 -2%
- read-from-minibuffer 19,764,586 -2%
- redisplay_internal (C function) 19,740,876 -2%
- find-image 19,740,876 -2%
- image-search-load-path 19,740,876 -2%
image-search-load-path 18,166,368 -3%
- command-execute 1,208 0%
- call-interactively 40 0%
- minibuffer-complete-and-exit 40 0%
minibuffer--complete-and-exit 40 0%
- read--expression 19,750,039 -2%
- read-from-minibuffer 19,749,638 -2%
- redisplay_internal (C function) 19,723,328 -2%
- find-image 19,723,328 -2%
- image-search-load-path 19,723,328 -2%
image-search-load-path 18,148,820 -3%
- command-execute 808 0%
- call-interactively 680 0%
- self-insert-command 680 0%
- blink-paren-post-self-insert-function 680 0%
- blink-matching-open 680 0%
- sit-for 480 0%
redisplay 320 0%
read-event 160 0%
- execute-extended-command 2,025,794 2%
- command-execute 1,980,502 2%
- call-interactively 1,980,494 2%
- profiler-report 1,979,210 2%
- profiler-report-cpu 1,076,878 1%
- profiler-cpu-profile 944,730 1%
profiler-make-profile 1,198 0%
- profiler-report-profile-other-window 132,148 0%
- profiler-report-setup-buffer 132,148 0%
- profiler-report-setup-buffer-1 131,636 0%
profiler-report-make-buffer-name 131,104 0%
- profiler-report-render-calltree 512 0%
- profiler-report-rerender-calltree 512 0%
- profiler-report-render-calltree 512 0%
- profiler-report-header-line-f 512 0%
replace-regexp-in-string 512 0%
- profiler-report-memory 902,332 1%
profiler-memory-profile 902,332 1%
- profiler-start 1,284 0%
message 1,284 0%
- eval-expression 745,480 0%
eval 745,480 0%
- profiler-report 151,477 0%
- profiler-report-cpu 151,477 0%
- profiler-report-profile-other-window 151,477 0%
- switch-to-buffer-other-window 143,289 0%
- pop-to-buffer 143,289 0%
- display-buffer 143,289 0%
- display-buffer--maybe-pop-up-frame-or 143,289 0%
- display-buffer-pop-up-window 143,289 0%
- window--try-to-split-window 143,289 0%
- funcall 143,289 0%
- split-window-sensibly 143,289 0%
- split-window-below 143,289 0%
- split-window 143,289 0%
byte-code 143,289 0%
- profiler-report-setup-buffer 8,188 0%
- profiler-report-render-calltree 8,188 0%
- profiler-report-rerender-calltree 8,188 0%
- profiler-report-render-calltree-1 8,188 0%
- profiler-calltree-build 8,188 0%
- profiler-calltree-compute-percent 8,188 0%
- profiler-calltree-walk 8,188 0%
- profiler-calltree-walk 8,188 0%
- profiler-calltree-walk 8,188 0%
- profiler-calltree-walk 8,188 0%
#<compiled 0xd6dff9> 8,188 0%
- redisplay_internal (C function) 40,759,238 -2%
- find-image 39,446,656 -4%
- image-search-load-path 39,446,656 -4%
image-search-load-path 36,297,640 4%
- tool-bar-make-keymap 1,312,070 1%
- tool-bar-make-keymap-1 1,312,070 1%
- mapcar 1,312,070 1%
- #<compiled 0x4cb765> 1,312,070 1%
- eval 1,312,070 1%
- find-image 1,312,070 1%
image-search-load-path 1,312,070 1%
- kill-this-buffer-enabled-p 512 0%
byte-code 512 0%
And this in *CPU-Profiler-Report..*:
- command-execute 215 98%
- call-interactively 215 98%
- eval-expression 204 93%
eval 204 93%
- byte-code 10 4%
- read--expression 5 2%
- read-from-minibuffer 4 1%
- redisplay_internal (C function) 2 0%
- find-image 2 0%
- image-search-load-path 2 0%
image-search-load-path 2 0%
- command-execute 1 0%
- call-interactively 1 0%
- self-insert-command 1 0%
- blink-paren-post-self-insert-fun 1 0%
- blink-matching-open 1 0%
sit-for 1 0%
- read-extended-command 5 2%
- completing-read 5 2%
- completing-read-default 5 2%
- read-from-minibuffer 4 1%
- redisplay_internal (C function) 2 0%
- find-image 2 0%
- image-search-load-path 2 0%
image-search-load-path 2 0%
- execute-extended-command 1 0%
- command-execute 1 0%
- call-interactively 1 0%
- profiler-report 1 0%
- profiler-report-cpu 1 0%
profiler-cpu-profile 1 0%
Automatic GC 2 0%
- redisplay_internal (C function) 1 0%
- find-image 1 0%
- image-search-load-path 1 0%
image-search-load-path 1 0%
HTH.
BTW -
1. Is there an easier way to open everything up like that? All I could
find was to hit TAB or RET or i on each line. PITA.
2. Seems like the mode line info should also (or instead) appear in the
buffer as a title, so it gets picked up by C-x h.
3. The numeric columns should have headers. No idea what the numbers
mean - what units for the first column, percentage of what (what
compared to what) for the second column.
[-- Attachment #2: throw-prof-cpu.txt --]
[-- Type: text/plain, Size: 1912 bytes --]
[profiler-profile "24.3" cpu #s(hash-table size 65 test equal rehash-size 1.5 rehash-threshold 0.8 data ([nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil] 5 [image-search-load-path image-search-load-path find-image redisplay_internal\ \(C\ function\) read-from-minibuffer read--expression byte-code call-interactively command-execute nil nil nil nil nil nil nil] 2 [read-from-minibuffer read--expression byte-code call-interactively command-execute nil nil nil nil nil nil nil nil nil nil nil] 1 [read--expression byte-code call-interactively command-execute nil nil nil nil nil nil nil nil nil nil nil nil] 1 [sit-for blink-matching-open blink-paren-post-self-insert-function self-insert-command call-interactively command-execute read-from-minibuffer read--expression byte-code call-interactively command-execute nil nil nil nil nil] 1 [eval eval-expression call-interactively command-execute nil nil nil nil nil nil nil nil nil nil nil nil] 204 [image-search-load-path image-search-load-path find-image redisplay_internal\ \(C\ function\) nil nil nil nil nil nil nil nil nil nil nil nil] 1 [image-search-load-path image-search-load-path find-image redisplay_internal\ \(C\ function\) read-from-minibuffer completing-read-default completing-read read-extended-command byte-code call-interactively command-execute nil nil nil nil nil] 2 [read-from-minibuffer completing-read-default completing-read read-extended-command byte-code call-interactively command-execute nil nil nil nil nil nil nil nil nil] 2 [completing-read-default completing-read read-extended-command byte-code call-interactively command-execute nil nil nil nil nil nil nil nil nil nil] 1 [profiler-cpu-profile profiler-report-cpu profiler-report call-interactively command-execute execute-extended-command call-interactively command-execute nil nil nil nil nil nil nil nil] 1 [Automatic\ GC] 2)) (20949 57121 639000 0) nil]
[-- Attachment #3: throw-prof-mem.txt --]
[-- Type: text/plain, Size: 6530 bytes --]
[profiler-profile "24.3" memory #s(hash-table size 65 test equal rehash-size 1.5 rehash-threshold 0.8 data ([message profiler-start call-interactively command-execute execute-extended-command call-interactively command-execute nil nil nil nil nil nil nil nil nil] 1284 [profiler-start call-interactively command-execute execute-extended-command call-interactively command-execute nil nil nil nil nil nil nil nil nil nil] 0 [image-search-load-path find-image eval "#<compiled 0x4cb765>" mapcar tool-bar-make-keymap-1 tool-bar-make-keymap redisplay_internal\ \(C\ function\) nil nil nil nil nil nil nil nil] 1312070 [nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil] 36564 [byte-code kill-this-buffer-enabled-p redisplay_internal\ \(C\ function\) nil nil nil nil nil nil nil nil nil nil nil nil nil] 512 [image-search-load-path find-image redisplay_internal\ \(C\ function\) nil nil nil nil nil nil nil nil nil nil nil nil nil] 3149016 [image-search-load-path image-search-load-path find-image redisplay_internal\ \(C\ function\) nil nil nil nil nil nil nil nil nil nil nil nil] 36297640 [read--expression byte-code call-interactively command-execute nil nil nil nil nil nil nil nil nil nil nil nil] 401 [read-from-minibuffer read--expression byte-code call-interactively command-execute nil nil nil nil nil nil nil nil nil nil nil] 25502 [image-search-load-path find-image redisplay_internal\ \(C\ function\) read-from-minibuffer read--expression byte-code call-interactively command-execute nil nil nil nil nil nil nil nil] 1574508 [image-search-load-path image-search-load-path find-image redisplay_internal\ \(C\ function\) read-from-minibuffer read--expression byte-code call-interactively command-execute nil nil nil nil nil nil nil] 18148820 [command-execute read-from-minibuffer read--expression byte-code call-interactively command-execute nil nil nil nil nil nil nil nil nil nil] 128 [blink-matching-open blink-paren-post-self-insert-function self-insert-command call-interactively command-execute read-from-minibuffer read--expression byte-code call-interactively command-execute nil nil nil nil nil nil] 200 [redisplay sit-for blink-matching-open blink-paren-post-self-insert-function self-insert-command call-interactively command-execute read-from-minibuffer read--expression byte-code call-interactively command-execute nil nil nil nil] 320 [read-event sit-for blink-matching-open blink-paren-post-self-insert-function self-insert-command call-interactively command-execute read-from-minibuffer read--expression byte-code call-interactively command-execute nil nil nil nil] 160 [eval eval-expression call-interactively command-execute nil nil nil nil nil nil nil nil nil nil nil nil] 745480 [completing-read-default completing-read read-extended-command byte-code call-interactively command-execute nil nil nil nil nil nil nil nil nil nil] 401 [read-from-minibuffer completing-read-default completing-read read-extended-command byte-code call-interactively command-execute nil nil nil nil nil nil nil nil nil] 22502 [image-search-load-path find-image redisplay_internal\ \(C\ function\) read-from-minibuffer completing-read-default completing-read read-extended-command byte-code call-interactively command-execute nil nil nil nil nil nil] 1574508 [image-search-load-path image-search-load-path find-image redisplay_internal\ \(C\ function\) read-from-minibuffer completing-read-default completing-read read-extended-command byte-code call-interactively command-execute nil nil nil nil nil] 18166368 [command-execute read-from-minibuffer completing-read-default completing-read read-extended-command byte-code call-interactively command-execute nil nil nil nil nil nil nil nil] 1168 [minibuffer--complete-and-exit minibuffer-complete-and-exit call-interactively command-execute read-from-minibuffer completing-read-default completing-read read-extended-command byte-code call-interactively command-execute nil nil nil nil nil] 40 [execute-extended-command call-interactively command-execute nil nil nil nil nil nil nil nil nil nil nil nil nil] 45292 [command-execute execute-extended-command call-interactively command-execute nil nil nil nil nil nil nil nil nil nil nil nil] 8 [profiler-cpu-profile profiler-report-cpu profiler-report call-interactively command-execute execute-extended-command call-interactively command-execute nil nil nil nil nil nil nil nil] 943532 [profiler-make-profile profiler-cpu-profile profiler-report-cpu profiler-report call-interactively command-execute execute-extended-command call-interactively command-execute nil nil nil nil nil nil nil] 1198 [profiler-report-make-buffer-name profiler-report-setup-buffer-1 profiler-report-setup-buffer profiler-report-profile-other-window profiler-report-cpu profiler-report call-interactively command-execute execute-extended-command call-interactively command-execute nil nil nil nil nil] 131104 [profiler-report-setup-buffer-1 profiler-report-setup-buffer profiler-report-profile-other-window profiler-report-cpu profiler-report call-interactively command-execute execute-extended-command call-interactively command-execute nil nil nil nil nil nil] 532 ["#<compiled 0xd6dff9>" profiler-calltree-walk profiler-calltree-walk profiler-calltree-walk profiler-calltree-walk profiler-calltree-compute-percentages profiler-calltree-build profiler-report-render-calltree-1 profiler-report-rerender-calltree profiler-report-render-calltree profiler-report-setup-buffer profiler-report-profile-other-window profiler-report-cpu profiler-report call-interactively command-execute] 8188 [replace-regexp-in-string profiler-report-header-line-format profiler-report-render-calltree-1 profiler-report-rerender-calltree profiler-report-render-calltree profiler-report-setup-buffer profiler-report-profile-other-window profiler-report-cpu profiler-report call-interactively command-execute execute-extended-command call-interactively command-execute nil nil] 512 [byte-code split-window split-window-below split-window-sensibly funcall window--try-to-split-window display-buffer-pop-up-window display-buffer--maybe-pop-up-frame-or-window display-buffer pop-to-buffer switch-to-buffer-other-window profiler-report-profile-other-window profiler-report-cpu profiler-report call-interactively command-execute] 143289 [profiler-memory-profile profiler-report-memory profiler-report call-interactively command-execute execute-extended-command call-interactively command-execute nil nil nil nil nil nil nil nil] 902332)) (20949 57121 697000 0) nil]
next parent reply other threads:[~2013-07-04 20:57 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <<82afc751-3de7-4315-833d-fa6c9ab9378a@default>
[not found] ` <<83sizuz791.fsf@gnu.org>
2013-07-04 20:57 ` Drew Adams [this message]
2013-07-05 16:01 ` bug#14786: 24.3.50; `field-end' is now very slow Eli Zaretskii
2021-12-04 3:45 ` Lars Ingebrigtsen
2021-12-04 16:36 ` bug#14786: [External] : " Drew Adams
2021-12-04 19:05 ` Lars Ingebrigtsen
[not found] <<029969a6-cd0e-45c9-b778-57b5daf98c2a@default>
[not found] ` <<8338rtyp0y.fsf@gnu.org>
2013-07-05 17:06 ` Drew Adams
2013-07-05 18:33 ` Eli Zaretskii
2013-07-04 5:34 Drew Adams
2013-07-04 15:15 ` Eli Zaretskii
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