Package: emacs;
Reported by: Kostafey_Yandex <Kostafey <at> Yandex.ru>
Date: Sun, 5 Oct 2008 15:00:03 UTC
Severity: normal
Merged with 3198
Done: Chong Yidong <cyd <at> stupidchicken.com>
Bug is archived. No further changes may be made.
View this message in rfc822 format
From: Kostafey_Yandex <Kostafey <at> Yandex.ru> To: emacs-pretest-bug <at> gnu.org, help-emacs-windows <at> gnu.org Subject: bug#1089: Bug report: Hight CPU loading on scrolling Date: Sun, 5 Oct 2008 18:54:24 +0400
From: <Kostafey <at> DB0TKD2J> To: emacs-pretest-bug <at> gnu.org Subject: 23.0.60; Hight CPU loading on scrolling We've got a bug on emacs text scrolling. If we set scroll 'by line' like this (setq scroll-step 1) we can open rather long file (like emacs tutorial) and press down buton for a some peiod of time. After some smooth scroll period CPU loading increase, so 'glitches' or scroll interrupts take place. The CPU loading increase much more when we try to do the same with russian tutorial (simply scroll down line-by-line). The CPU loading increase more in newer version of emacs. We tested this bug on different version of emacs. They were: emacs-22.1-bin-i386 emacs-22.2-bin-i386 emacs-22.3-bin-i386 emacs-from-cvs-080927 emacs-from-cvs-081003 We try it on 2 PC (with WinXP both). It is'n matter how to start emacs, what version to use, or what configuration to write to .emacs file to reproduce this bug. ----------------------------------- ---- HOW TO REPRODUCE THIS BUG ---- ----------------------------------- 1. Start emacs with emacs -Q 2. Then write ;(setq scroll-step 1) and press C-x C-e 3. Open english (or russian) tutorial 4. Simply press key down for a some period of time 5. Then scrolling become smooth for a small period of time, then CPU loading increased and scrolling become interrupted. So, you'll got it. ---------------------------------- We prepared 2 bug reports for you from 2 PC (generated by emacs text following below). __BUG REPORT 1: Testing on PC with CPU Pentium IV core duo T2400 1.83GHz and RAM 1024Gb with ENGLISH tutorial I've got 15% CPU loading on scrolling with RUSSIAN tutorial I've got 25% CPU loading on scrolling with huge scrolling interrupts __BUG REPORT 2: Testing on PC with CPU Pentium III and RAM 633Gb with ENGLISH tutorial we've got from 30% to 60% (sometimes, 100%) CPU loading on scrolling with huge scrolling interrupts with RUSSIAN tutorial we've got 100% CPU loading on scrolling without possible to continue scrolling at all. ----------------------------------- ----------- BUG REPORT 1 ---------- ----------------------------------- In GNU Emacs 23.0.60.1 (i386-mingw-nt5.1.2600) of 2008-10-03 on LENNART-69DE564 Windowing system distributor `Microsoft Corp.', version 5.1.2600 configured using `configure --with-gcc (3.4) --no-opt --cflags -Ic:/g/include -fno-crossjumping' 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: ru value of $XMODIFIERS: nil locale-coding-system: cp1251 default-enable-multibyte-characters: t Major mode: Text Minor modes in effect: tooltip-mode: t tool-bar-mode: t mouse-wheel-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: <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <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. Mark set 1 preceding-sexp: End of file during parsing 1 Making completion list... Preparing tutorial ... ----------------------------------- ----------- BUG REPORT 2 ---------- ----------------------------------- In GNU Emacs 23.0.60.1 (i386-mingw-nt5.1.2600) of 2008-10-03 on LENNART-69DE564 Windowing system distributor `Microsoft Corp.', version 5.1.2600 configured using `configure --with-gcc (3.4) --no-opt --cflags -Ic:/g/include -fno-crossjumping' 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: RUS value of $XMODIFIERS: nil locale-coding-system: cp1251 default-enable-multibyte-characters: t Major mode: Text Minor modes in effect: tooltip-mode: t tool-bar-mode: t mouse-wheel-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: <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <down> <help-echo> <help-echo> <help-echo> <help-echo> <help-echo> <help-echo> <help-echo> <help-echo> <help-echo> <help-echo> <help-echo> <help-echo> <help-echo> <help-echo> <help-echo> <help-echo> <menu-bar> <help-menu> <se nd-emacs-bug-report> Recent messages: For information about GNU Emacs and the GNU system, type C-h C-a. 1 Making completion list... Preparing tutorial ... -- Yours faithfully, Konstantin mailto:Kostafey <at> Yandex.ru
GNU bug tracking system
Copyright (C) 1999 Darren O. Benham,
1997,2003 nCipher Corporation Ltd,
1994-97 Ian Jackson.