* bug#64681: 30.0.50; slow saving of scores when leaving an nnml group in gnus
@ 2023-07-17 12:01 Fraga, Eric
2023-07-17 13:10 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
0 siblings, 1 reply; 2+ messages in thread
From: Fraga, Eric @ 2023-07-17 12:01 UTC (permalink / raw)
To: 64681
Recently, I've noticed a slow down in leaving some of my nnml groups.
Using the profiler, I see the outcomes shown below, capturing cpu and
memory when entering a virtual group, that collects 3 different nnml
groups, and then immediately leaving that group. The same behaviour is
seen when entering a single nnml group.
A significant amount of time is taken saving scores, as far as I can
tell. I use adaptive scoring. Nothing with respect to scoring has
changed in my configuration in some time (years probably).
The offending function appears to be "lisp--local-defform-body-p" with
large memory and cpu use.
Cpu report (partly expanded):
10133 79% - command-execute
8519 66% - funcall-interactively
4767 37% - gnus-summary-exit
4659 36% - gnus-score-save
4655 36% - gnus-pp
4655 36% - pp
4655 36% - pp-to-string
4655 36% - pp-fill
4647 36% - pp--object
4627 36% - pp-fill
4615 36% - pp-fill
4555 35% - pp-fill
4263 33% - pp-fill
4243 33% - indent-according-to-mode
4243 33% - lisp-indent-line
4163 32% - calculate-lisp-indent
4163 32% - lisp-indent-function
4163 32% lisp--local-defform-body-p
48 0% + lisp-ppss
240 1% + indent-according-to-mode
72 0% + gnus-run-hooks
32 0% + gnus-close-group
4 0% + gnus-summary-update-info
3688 28% + gnus-topic-select-group
60 0% + file-notify-handle-event
3 0% + execute-extended-command
1614 12% + byte-code
2260 17% Automatic GC
407 3% + timer-event-handler
0 0% ...
and memory report, also partly expanded:
832,940,181 99% - command-execute
805,535,710 96% - funcall-interactively
540,874,166 64% - gnus-summary-exit
537,712,423 64% - gnus-score-save
536,634,533 64% - gnus-pp
535,956,310 64% - pp
535,618,670 64% - pp-to-string
535,610,465 64% - pp-fill
533,695,189 63% - pp--object
533,684,957 63% - pp-fill
533,683,933 63% - pp-fill
533,651,141 63% - pp-fill
532,169,752 63% - pp-fill
531,888,880 63% - indent-according-to-mode
531,888,880 63% - lisp-indent-line
484,726,608 58% - calculate-lisp-indent
484,661,024 58% - lisp-indent-function
484,661,024 58% lisp--local-defform-body-p
902,445 0% + indent-according-to-mode
21 0% nnheader-set-temp-buffer
1,609,314 0% + gnus-summary-update-info
924,174 0% + gnus-close-group
579,308 0% + gnus-run-hooks
2,069 0% gnus-score-adaptive
1,529 0% + gnus-configure-windows
21 0% gnus-set-global-variables
263,358,645 31% + gnus-topic-select-group
839,207 0% + execute-extended-command
463,692 0% + file-notify-handle-event
27,404,471 3% + byte-code
983,687 0% + timer-event-handler
53,056 0% + redisplay_internal (C function)
14,903 0% Automatic GC
6,224 0% + hl-line-highlight
21 0% gnus-set-global-variables
0 0% ...
After discussion on the gnus mailing list, the culprit would appear to
be the pretty-printing. Setting pp-default-function to 'pp-28 instead
of 'pp-fill restores the behaviour to what is desirable in terms of
speed.
Thank you,
eric
In GNU Emacs 30.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version
3.24.37, cairo version 1.16.0) of 2023-07-10 built on dt2022
Repository revision: b56f46c9deeb782297695e39baf8f3c65c85281b
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12101007
System Description: Debian GNU/Linux 12 (bookworm)
Configured using:
'configure --prefix=/home/ucecesf/pd/emacs --with-native-compilation
--with-x-toolkit=gtk3 --with-xwidgets'
Configured features:
CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GSETTINGS HARFBUZZ JPEG JSON
LCMS2 LIBSELINUX LIBXML2 MODULES NATIVE_COMP NOTIFY INOTIFY PDUMPER PNG
RSVG SECCOMP SOUND SQLITE3 THREADS TIFF TOOLKIT_SCROLL_BARS WEBP X11
XDBE XIM XINPUT2 XPM XWIDGETS GTK3 ZLIB
Important settings:
value of $LANG: en_GB.UTF-8
value of $XMODIFIERS: @im=ibus
locale-coding-system: utf-8-unix
Major mode: Lisp Interaction
Minor modes in effect:
display-line-numbers-mode: t
evil-surround-mode: t
tsa-keys: t
electric-pair-mode: t
indent-guide-mode: t
savehist-mode: t
vertico-mode: t
marginalia-mode: t
global-atomic-chrome-edit-mode: t
override-global-mode: t
emms-mode-line-mode: t
emms-playing-time-display-mode: t
emms-playing-time-mode: t
recentf-mode: t
display-time-mode: t
global-aggressive-indent-mode: t
aggressive-indent-mode: t
which-key-mode: t
windmove-mode: t
org-roam-db-autosync-mode: t
global-auto-revert-mode: t
hl-line-mode: t
evil-owl-mode: t
general-override-mode: t
global-evil-fringe-mark-mode: t
evil-local-mode: t
server-mode: t
save-place-mode: t
dynamic-completion-mode: t
tooltip-mode: t
global-eldoc-mode: t
eldoc-mode: t
show-paren-mode: t
electric-indent-mode: t
mouse-wheel-mode: t
tab-bar-mode: t
file-name-shadow-mode: t
global-font-lock-mode: t
font-lock-mode: t
window-divider-mode: t
line-number-mode: t
transient-mark-mode: t
auto-composition-mode: t
auto-encryption-mode: t
auto-compression-mode: t
abbrev-mode: t
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Memory information:
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(buffers 976 280))
--
Eric S Fraga via gnus (Emacs 30.0.50 2023-07-10) on Debian 12.0
^ permalink raw reply [flat|nested] 2+ messages in thread* bug#64681: 30.0.50; slow saving of scores when leaving an nnml group in gnus
2023-07-17 12:01 bug#64681: 30.0.50; slow saving of scores when leaving an nnml group in gnus Fraga, Eric
@ 2023-07-17 13:10 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
0 siblings, 0 replies; 2+ messages in thread
From: Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors @ 2023-07-17 13:10 UTC (permalink / raw)
To: Fraga, Eric; +Cc: 64681
> A significant amount of time is taken saving scores, as far as I can
> tell. I use adaptive scoring. Nothing with respect to scoring has
> changed in my configuration in some time (years probably).
If you could send me your biggest scoring file I could try and reproduce
it locally.
I understand it contains private information, so you might want to
"sanitize" it first e.g. by doing a search&replace such as
C-u M-% ".+" RET "xxxx" RET
[ Maybe you'll need to tweak the regexp, e.g. if you have strings that
contain the double quote character or that span more than one line.
E.g. maybe search for \" before doing the above. If you need more
help with that, let me know. ]
> The offending function appears to be "lisp--local-defform-body-p" with
> large memory and cpu use.
Indeed.
> After discussion on the gnus mailing list, the culprit would appear to
> be the pretty-printing. Setting pp-default-function to 'pp-28 instead
> of 'pp-fill restores the behaviour to what is desirable in terms of
> speed.
Yup, the underlying difference is that the new `pp-fill` uses
`lisp-indent-line` whereas the old code (`pp-28`) uses
`lisp-indent-region`. In most cases, the algorithmic complexity of
calling `lisp-indent-line` on every line of a region should be the same
as that of `lisp-indent-region`, but sometimes performance bugs creep
in :-(
Stefan
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2023-07-17 13:10 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz follow: Atom feed
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2023-07-17 12:01 bug#64681: 30.0.50; slow saving of scores when leaving an nnml group in gnus Fraga, Eric
2023-07-17 13:10 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
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