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bug#21077: 24.5; Slow printing in inferior python buffer with python-she
From: |
Stefan Monnier |
Subject: |
bug#21077: 24.5; Slow printing in inferior python buffer with python-shell-enable-font-lock |
Date: |
Thu, 30 Jul 2015 19:19:50 -0400 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/25.0.50 (gnu/linux) |
> Sorry for the delay in responding. I think a reasonable short term
> measure is to set python-shell-enable-font-lock to nil by default, and
> perhaps add a warning to the doc string to the effect that setting it
> to a non-nil value can dramatically slow down printing.
As mentioned, font-lock is but one of the parts of Emacs that slow down
as lines get longer.
In the case of comint modes, rather than disable font-lock we should
refrain from font-locking the text after the last \n (since that's the
line that keeps getting expanded, so we end up re-font-locking it O(N)
times for a line of length N, for a total amount of work of O(N^2)).
IIRC I have a similar hack in grep.el or compile.el.
Stefan
- bug#21077: 24.5; Slow printing in inferior python buffer with python-shell-enable-font-lock, Ista Zahn, 2015/07/16
- bug#21077: 24.5; Slow printing in inferior python buffer with python-shell-enable-font-lock, Eli Zaretskii, 2015/07/16
- bug#21077: 24.5; Slow printing in inferior python buffer with python-shell-enable-font-lock, Ista Zahn, 2015/07/16
- bug#21077: 24.5; Slow printing in inferior python buffer with python-shell-enable-font-lock, Eli Zaretskii, 2015/07/16
- bug#21077: 24.5; Slow printing in inferior python buffer with python-shell-enable-font-lock, Ista Zahn, 2015/07/16
- bug#21077: 24.5; Slow printing in inferior python buffer with python-shell-enable-font-lock, Eli Zaretskii, 2015/07/17
- bug#21077: 24.5; Slow printing in inferior python buffer with python-shell-enable-font-lock, Stefan Monnier, 2015/07/17
- bug#21077: 24.5; Slow printing in inferior python buffer with python-shell-enable-font-lock, Rasmus, 2015/07/17
- bug#21077: 24.5; Slow printing in inferior python buffer with python-shell-enable-font-lock, Ista Zahn, 2015/07/29
- bug#21077: 24.5; Slow printing in inferior python buffer with python-shell-enable-font-lock,
Stefan Monnier <=
- bug#21077: 24.5; Slow printing in inferior python buffer with python-shell-enable-font-lock, Ista Zahn, 2015/07/30
- bug#21077: 24.5; Slow printing in inferior python buffer with python-shell-enable-font-lock, Stefan Monnier, 2015/07/31
- bug#21077: 24.5; Slow printing in inferior python buffer with python-shell-enable-font-lock, Ista Zahn, 2015/07/31