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Date: Sat, 04 Jul 2009 12:46:44 -0400
From: Ken Brown <kbrown AT cornell DOT edu>
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Subject: Re: `run emacs' in win32 console cause bad emacs performance
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On 7/4/2009 9:35 AM, Haojun Bao wrote:
> Cygwin is 1.7, I update very often, and I can reproduce it both at home
> and in office.
> 
> Here's the steps to reproduce it:
> 
> 0. Start X, and set DISPLAY:
>   $startxwin.sh
>   $export DISPLAY=:0
> 
> 1. start bash from cygwin.bat:
>    $cygstart /Cygwin.bat
> 
> 2. In the cygwin.bat console window, start emacs-X11 using run.exe:
>   $run emacs-X11.exe -q
> 
> 
> 3. In the emacs window, move cursor up/down, take a note it's speed,

OK, I can reproduce it now.  The fix is to make sure your CYGWIN 
environment variable contains tty before starting the console.  I use a 
modified Cygwin.bat that does this.  (That's why I couldn't reproduce 
your problem the first time I tried.)

$ cat bin/Cygwin.bat
@echo off
C:
chdir C:\cygwin-1.7\bin
SET CYGWIN=%CYGWIN% tty
bash --login -i

Ken

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