bug#233: marked as done (Slow repainting, sluggish feeling emacs)

[Emacs bug Tracking System]

Your message dated Wed, 30 Jul 2008 23:09:06 +0100
with message-id <4890E682.6090108@gnu.org>
and subject line Slow repainting, sluggish feeling emacs
has caused the Emacs bug report #233,
regarding Slow repainting, sluggish feeling emacs
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
bug report if necessary, and/or fix the problem forthwith.

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-- 
233: http://emacsbugs.donarmstrong.com/cgi-bin/bugreport.cgi?bug=233
Emacs Bug Tracking System
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> --- Begin Message ---
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> Subject: 
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> Slow repainting, sluggish feeling emacs
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> Date: 
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> Mon, 12 May 2008 21:10:39 -0400
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> I recently re-built emacs 23 from cvs and there's a noticeable delay in many repainting operations. Typing is sluggish and redrawing a buffer when switching to it is noticeably slow.  
>
> So I tried to measure the difference.  I started two versions of emacs with --no-init, loaded nothing, and immediately ran elp-instrument-function on "ibuffer".  Here are the results: 
>
> emacs(GNU Emacs MailScanner warning: numerical links are often malicious: 23.0.60.1 (i386-mingw-nt5.1.2600) of 2008-02-20 on U0103223-XPA)
> Function Name Call Count Elapsed Time Average Time
> ibuffer        1           0.0           0.0
>
>
> GNU Emacs MailScanner warning: numerical links are often malicious: 23.0.60.1 (i386-mingw-nt5.1.2600) of 2008-05-12 on U0103223-XPA
> Function Name Call Count Elapsed Time Average Time
> ibuffer        1           0.032         0.032
>
> I ran elp-instrument-function again and got:
> ibuffer        1           0.047         0.047
>
> The time difference is very small, but with a loaded up emacs config the time becomes very noticeable. 
> I built emacs on windows-xp using cygwin(-mno-cygwin however), ming32-make.  Both versions of the build where 'configured' the same: 
>
> Here's the 'report-emacs-bug' important stuff:
>
>
> In GNU Emacs MailScanner warning: numerical links are often malicious: 23.0.60.1 (i386-mingw-nt5.1.2600)
>  of 2008-05-12 on U0103223-XPA
> Windowing system distributor `Microsoft Corp.', version 5.1.2600
> configured using `configure --with-gcc (3.4) --cflags -I../../include -msse3 -O3'
>
> 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: ENU
>   value of $XMODIFIERS: nil
>   locale-coding-system: cp1252
>   default-enable-multibyte-characters: t
>
> Major mode: Fundamental
>
> Minor modes in effect:
>   tooltip-mode: t
>   mouse-wheel-mode: t
>   file-name-shadow-mode: t
>   global-font-lock-mode: t
>   blink-cursor-mode: t
>   global-auto-composition-mode: t
>   auto-encryption-mode: t
>   auto-compression-mode: t
>   line-number-mode: t
>   transient-mark-mode: t
>
> Recent input:
> M-x M-p i <backspace> e l p 0 <backspace> - i n s t 
> r <tab> f u n <tab> <return> i b u f f e r <return> 
> M-x l o a d - l i <tab> <return> i b u f f e r <return> 
> M-x M-p M-p <return> M-p <return> M-x i b u f f e r 
> <return> q C-x b C-g C-x C-b <down> <down> <down> <down> 
> <down> <down> q C-x 1 M-x i b u f f e r - <M-backspace> 
> e l p - r e s u l <tab> <return> C-SPC <down> M-w q 
> M-x r e p o r <tab> <return>
>
> Recent messages:
> goto-history-element: Beginning of history; no preceding item
> elp-instrument-function: ELP cannot profile autoloaded function: ibuffer
> Loading ibuffer...done
> Updating buffer list...
> Formats have changed, recompiling...done
> Mark set
> Updating buffer list...done
> Commands: m, u, t, RET, g, k, S, D, Q; q to quit; h for help
> Quit
> Mark set
>
>
> --- End Message ---
> --- Begin Message ---
>
>
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> Subject: 
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> Slow repainting, sluggish feeling emacs
>
>
>
>
> Date: 
>
> Wed, 30 Jul 2008 23:09:06 +0100
>
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>
>
> User-agent: 
>
> Thunderbird 2.0.0.16 (Windows/20080708)
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>
>
>
> reassign 233 emacs,w32
> thanks
>
> It seems that the performance issues are resolved by using uniscribe's
> built in caching for glyph encoding, and avoiding explicit encoding in
> the gdi backend.
>
>
> --- End Message ---