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Re: Display performance degradation
From: |
YAMAMOTO Mitsuharu |
Subject: |
Re: Display performance degradation |
Date: |
Fri, 18 Dec 2009 12:06:14 +0900 |
User-agent: |
Wanderlust/2.14.0 (Africa) SEMI/1.14.6 (Maruoka) FLIM/1.14.8 (Shijō) APEL/10.6 Emacs/22.3 (sparc-sun-solaris2.8) MULE/5.0 (SAKAKI) |
>>>>> On Thu, 17 Dec 2009 17:42:58 +0100, Jan Dj.ANdrv <address@hidden> said:
>>> For example, if a new font is added or if /etc/font.conf is
>>> changed, Emacs must be restarted because caches prevents Emacs
>>> from noticing the change.
>>
>> The problem of extremely slow display is the bigger problem than
>> it.
>>
> How much is extremely, do you have figures? I haven't noticed any change,
> maybe it only manifests itself for certain locales.
I can notice a clear difference on Ubuntu 9.10 with some additions for
Japanese support, running on MacBook Air (the bug reporter output is
at the end).
Steps to reproduce:
1. emacs -Q
2. C-u C-h t j RET
3. Keep pressing C-v
Then scrolling looks like "waving". The font used for displaying
Japanese characters is
xft:-unknown-VL $B%4%7%C%/(B-normal-normal-normal-*-13-*-*-*-*-0-iso10646-1
(The above Japanese word means "Gothic")
I think it's not noticeable with the tutorial in English (C-u C-h t a
RET in Step 2). And on some other system such as X11 on Mac OS X
10.5, I found the difference minor.
YAMAMOTO Mitsuharu
address@hidden
In GNU Emacs 23.1.90.1 (i686-pc-linux-gnu, GTK+ Version 2.18.3)
of 2009-12-18 on mituharu-laptop
Windowing system distributor `The X.Org Foundation', version 11.0.10604000
Important settings:
value of $LC_ALL: nil
value of $LC_COLLATE: nil
value of $LC_CTYPE: nil
value of $LC_MESSAGES: nil
value of $LC_MONETARY: nil
value of $LC_NUMERIC: nil
value of $LC_TIME: nil
value of $LANG: ja_JP.UTF-8
value of $XMODIFIERS: @im=ibus
locale-coding-system: utf-8-unix
default enable-multibyte-characters: t
Major mode: Lisp Interaction
Minor modes in effect:
tooltip-mode: t
mouse-wheel-mode: t
tool-bar-mode: t
menu-bar-mode: t
file-name-shadow-mode: t
global-font-lock-mode: t
font-lock-mode: t
blink-cursor-mode: t
global-auto-composition-mode: t
auto-composition-mode: t
auto-encryption-mode: t
auto-compression-mode: t
line-number-mode: t
transient-mark-mode: t
Recent input:
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <help-echo> <help-echo> <help-echo> <menu-bar>
<help-menu> <send-emacs-bug-report>
Recent messages:
For information about GNU Emacs and the GNU system, type C-h C-a.
Load-path shadows:
None found.
Features:
(shadow sort mail-extr message sendmail regexp-opt ecomplete rfc822 mml
easymenu mml-sec password-cache mm-decode mm-bodies mm-encode mailcap
mail-parse rfc2231 rfc2047 rfc2045 qp ietf-drums mailabbrev nnheader
gnus-util netrc time-date mm-util mail-prsvr gmm-utils wid-edit
mailheader canlock sha1 hex-util hashcash mail-utils emacsbug japan-util
tooltip ediff-hook vc-hooks lisp-float-type mwheel x-win x-dnd
font-setting tool-bar dnd fontset image fringe lisp-mode register page
menu-bar rfn-eshadow timer select scroll-bar mldrag mouse jit-lock
font-lock syntax facemenu font-core frame cham georgian utf-8-lang
misc-lang vietnamese tibetan thai tai-viet lao korean japanese hebrew
greek romanian slovak czech european ethiopic indian cyrillic chinese
case-table epa-hook jka-cmpr-hook help simple abbrev loaddefs button
minibuffer faces cus-face files text-properties overlay md5 base64
format env code-pages mule custom widget hashtable-print-readable
backquote make-network-process dbusbind system-font-setting
font-render-setting gtk x-toolkit x multi-tty emacs)
- Display performance degradation, YAMAMOTO Mitsuharu, 2009/12/16
- Re: Display performance degradation, Kenichi Handa, 2009/12/17
- Re: Display performance degradation, Chong Yidong, 2009/12/17
- Re: Display performance degradation, Jan Djärv, 2009/12/17
- Re: Display performance degradation, Kenichi Handa, 2009/12/20
- Re: Display performance degradation, Miles Bader, 2009/12/20
- Re: Display performance degradation, Lennart Borgman, 2009/12/20
- Re: Display performance degradation, Miles Bader, 2009/12/20
- Re: Display performance degradation, Lennart Borgman, 2009/12/20
- Re: Display performance degradation, Miles Bader, 2009/12/20