[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
bug#77620: thingatpt can be incredibly slow in python-mode buffers
|
From: |
kobarity |
|
Subject: |
bug#77620: thingatpt can be incredibly slow in python-mode buffers |
|
Date: |
Thu, 10 Apr 2025 00:33:03 +0900 |
|
User-agent: |
Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM-LB/1.14.9 (Gojō) APEL-LB/10.8 EasyPG/1.0.0 Emacs/31.0.50 (x86_64-pc-linux-gnu) MULE/6.0 (HANACHIRUSATO) |
Eli Zaretskii wrote:
>
> > From: JD Smith <jdtsmith@gmail.com>
> > Date: Mon, 7 Apr 2025 17:48:49 -0400
> >
> > > (/ (car (benchmark-run 10 (thing-at-point 'sexp))) 10)
> >
> >
> > Try this test at the start of L8817 in this file (no eglot needed; either
> > python-mode or python-ts-mode is fine, as both show the same issue):
> >
> > https://raw.githubusercontent.com/matplotlib/matplotlib/refs/heads/main/lib/matplotlib/axes/_axes.py
> > https://raw.githubusercontent.com/matplotlib/matplotlib/refs/heads/main/lib/matplotlib/axes/_axes.py
> > _axes
> > Text Document · 353 KB
> >
> > In #77588 this was shown to lead to long intermittent pauses with eglot in
> > large python buffers, but the issue is more general for any packages using
> > thingatpt in python buffers.
>
> The Lisp profile, which seems to point to the likely culprit, is
> below.
>
> Maybe kobarity (CC'ed) will have some ideas or suggestions.
>
> 345 89% - ...
> 343 89% - cond
> 343 89% - let
> 343 89% - condition-case
> 343 89% - progn
> 343 89% - save-excursion
> 173 44% - funcall
> 173 44% - thing-at-point--end-of-sexp
> 173 44% - let
> 173 44% - if
> 173 44% - condition-case
> 173 44% - forward-sexp
> 173 44% - python-nav-forward-sexp
> 173 44% - python-nav--forward-sexp
> 173 44% - python-info-statement-ends-block-p
> 173 44% - python-nav-end-of-block
> 96 24% - python-nav-end-of-statement
> 69 17% - syntax-ppss
> 67 17% parse-partial-sexp
> 27 7% - python-info-line-ends-backslash-p
> 27 7% - syntax-ppss
> 27 7% parse-partial-sexp
> 76 19% - python-nav-beginning-of-block
> 76 19% - python-nav-backward-block
> 76 19% - python-nav-forward-block
> 75 19% - python-syntax-context-type
> 75 19% - syntax-ppss
> 74 19% parse-partial-sexp
> 1 0% - python-nav-beginning-of-statement
> 1 0% point-marker
> 1 0% current-indentation
> 170 44% - let
> 170 44% - if
> 170 44% - funcall
> 170 44% - thing-at-point--beginning-of-sexp
> 170 44% - let
> 170 44% - if
> 170 44% - forward-sexp
> 170 44% - python-nav-forward-sexp
> 170 44% - python-nav--forward-sexp
> 170 44% - python-info-statement-ends-block-p
> 170 44% - python-nav-end-of-block
> 95 24% - python-nav-end-of-statement
> 63 16% - syntax-ppss
> 62 16% parse-partial-sexp
> 31 8% - python-info-line-ends-backslash-p
> 31 8% - syntax-ppss
> 30 7% parse-partial-sexp
> 1 0% re-search-forward
> 75 19% - python-nav-beginning-of-block
> 75 19% - python-nav-backward-block
> 75 19% - python-nav-forward-block
> 72 18% - python-syntax-context-type
> 72 18% - syntax-ppss
> 71 18% parse-partial-sexp
> 2 0% re-search-backward
> 1 0% - python-nav-beginning-of-statement
> 1 0% - python-info-line-ends-backslash-p
> 1 0% - syntax-ppss
> 1 0% syntax-ppss--data
> 2 0% - python-shell-get-process
> 2 0% - python-shell-get-buffer
> 2 0% - seq-some
> 2 0% + seq-do
> 32 8% Automatic GC
> 6 1% - command-execute
> 6 1% - call-interactively
> 6 1% - byte-code
> 6 1% - read-extended-command
> 6 1% - read-extended-command-1
> 6 1% - completing-read
> 6 1% - completing-read-default
> 6 1% - read-from-minibuffer
> 1 0% redisplay_internal (C function)
> 2 0% redisplay_internal (C function)
Please give me some time as I'm trying to improve performance.