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bug#29854: 25.3; Eshell buffer editing gets slower as colored output gro
From: |
Pierre Neidhardt |
Subject: |
bug#29854: 25.3; Eshell buffer editing gets slower as colored output grows |
Date: |
Tue, 26 Dec 2017 11:43:34 +0100 |
User-agent: |
mu4e 0.9.18; emacs 25.3.1 |
I originally reported this bug on Evil's issue tracker:
https://github.com/emacs-evil/evil/issues/1006
The recipe with Evil is as follows:
- Start Emacs.
- `M-x eshell'.
- Insert lots of colored text. On Linux, you can call `dmesg -L=always' a few
times.
- Go to normal state and press `x' wherever you can delete a character.
It should be possible to reproduce without Evil, I just could not figure
out a slow operation to replace the last step in the recipe.
According to the Evil maintainer, the issue comes from markers left
behind.
In fact, if I run `clone-buffer', the cloned buffer does not suffer from
this issue. I think `clone-buffer' does not copy markers.
By the way, is there a way to scan for markers other than
`buffer-has-markers-at'?
Is there a way to remove them?
In GNU Emacs 25.3.1 (x86_64-pc-linux-gnu, GTK+ Version 3.22.26)
of 2017-12-04 built on arojas
Windowing system distributor 'The X.Org Foundation', version 11.0.11905000
System Description: Arch Linux
Configured using:
'configure --prefix=/usr --sysconfdir=/etc --libexecdir=/usr/lib
--localstatedir=/var --with-x-toolkit=gtk3 --with-xft --with-modules
'CFLAGS=-march=x86-64 -mtune=generic -O2 -pipe -fstack-protector-strong
-fno-plt' CPPFLAGS=-D_FORTIFY_SOURCE=2
LDFLAGS=-Wl,-O1,--sort-common,--as-needed,-z,relro,-z,now'
Configured features:
XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS GCONF GSETTINGS
NOTIFY ACL GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB
TOOLKIT_SCROLL_BARS GTK3 X11 MODULES
Important settings:
value of $LANG: en_US.UTF-8
locale-coding-system: utf-8-unix
<#secure method=pgpmime mode=sign>
--
Pierre Neidhardt
You will gain money by an immoral action.
- bug#29854: 25.3; Eshell buffer editing gets slower as colored output grows,
Pierre Neidhardt <=