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severe performance problems in cygwin


I have severe performance problems with cygwin. Cygwin becomes almost

The problem seems to go away when cygwin window is out of focus, e.g.
when I click on some other window (not cygwin), cygwin performance
rapidly increases.

It has something with output to console window. When I decrease the
windows size performance also increases.

Does anyone have an idea.

Cygcheck attached.

Cygwin Configuration Diagnostics
Current System Time: Mon Sep 17 15:01:03 2007

Windows 2003 Enterprise Server Ver 5.2 Build 3790 Service Pack 2

Path:   C:\cygwin\usr\local\bin
        c:\Program Files\Perforce
        c:\Program Files\QuickTime\QTSystem\

Output from C:\cygwin\bin\id.exe (nontsec)
UID: 500(Administrator) GID: 513(None)
0(root)                 513(None)               544(Administrators)
545(Users)              1014(Debugger Users)

Output from C:\cygwin\bin\id.exe (ntsec)
UID: 500(Administrator) GID: 513(None)
0(root)                 513(None)               544(Administrators)
545(Users)              1014(Debugger Users)

SysDir: C:\WINDOWS\system32

USER = 'Administrator'
PWD = '/home/Administrator'
HOME = '/home/Administrator'
MAKE_MODE = 'unix'

Use '-r' to scan registry

c:  hd  NTFS     76285Mb  43% CP CS UN PA FC
d:  hd  NTFS     76293Mb   3% CP CS UN PA FC
e:  cd  CDFS       646Mb 100%    CS UN           MobilePhoneTools

C:\cygwin      /          system  binmode
C:\cygwin/bin  /usr/bin   system  binmode
C:\cygwin/lib  /usr/lib   system  binmode
.              /cygdrive  system  binmode,cygdrive

Found: C:\cygwin\bin\awk.exe
Found: C:\cygwin\bin\bash.exe
Found: C:\cygwin\bin\cat.exe
Found: C:\cygwin\bin\cp.exe
Not Found: cpp (good!)
Not Found: crontab
Found: C:\cygwin\bin\find.exe
Not Found: gcc
Not Found: gdb
Found: C:\cygwin\bin\grep.exe
Found: C:\cygwin\bin\kill.exe
Not Found: ld
Found: C:\cygwin\bin\ls.exe
Not Found: make
Found: C:\cygwin\bin\mv.exe
Not Found: patch
Not Found: perl
Found: C:\cygwin\bin\rm.exe
Found: C:\cygwin\bin\sed.exe
Not Found: ssh
Found: C:\cygwin\bin\sh.exe
Found: C:\cygwin\bin\tar.exe
Found: C:\cygwin\bin\test.exe
Not Found: vi
Not Found: vim

   61k 2006/11/10 C:\cygwin\bin\cygbz2-1.dll
    7k 2003/10/19 C:\cygwin\bin\cygcrypt-0.dll
   40k 2006/11/15 C:\cygwin\bin\cygform-8.dll
   25k 2007/08/23 C:\cygwin\bin\cyghistory6.dll
  271k 2007/08/24 C:\cygwin\bin\cygicons-0.dll
  976k 2006/10/22 C:\cygwin\bin\cygiconv-2.dll
   37k 2003/08/10 C:\cygwin\bin\cygintl-2.dll
   31k 2005/11/20 C:\cygwin\bin\cygintl-3.dll
   31k 2006/10/23 C:\cygwin\bin\cygintl-8.dll
   21k 2006/11/15 C:\cygwin\bin\cygmenu-8.dll
   67k 2006/11/15 C:\cygwin\bin\cygncurses++-8.dll
  237k 2006/11/15 C:\cygwin\bin\cygncurses-8.dll
   12k 2006/11/15 C:\cygwin\bin\cygpanel-8.dll
  133k 2007/06/27 C:\cygwin\bin\cygpcre-0.dll
  303k 2007/06/27 C:\cygwin\bin\cygpcrecpp-0.dll
    7k 2007/06/27 C:\cygwin\bin\cygpcreposix-0.dll
   22k 2002/06/09 C:\cygwin\bin\cygpopt-0.dll
  154k 2007/08/23 C:\cygwin\bin\cygreadline6.dll
 1830k 2007/01/31 C:\cygwin\bin\cygwin1.dll
    Cygwin DLL version info:
        DLL version: 1.5.24
        DLL epoch: 19
        DLL bad signal mask: 19005
        DLL old termios: 5
        DLL malloc env: 28
        API major: 0
        API minor: 156
        Shared data: 4
        DLL identifier: cygwin1
        Mount registry: 2
        Cygnus registry name: Cygnus Solutions
        Cygwin registry name: Cygwin
        Program options name: Program Options
        Cygwin mount registry name: mounts v2
        Cygdrive flags: cygdrive flags
        Cygdrive flags: cygdrive flags
        Cygdrive prefix: cygdrive prefix
        Cygdrive default prefix:
        Build date: Wed Jan 31 10:57:51 CET 2007
        CVS tag: cr-0x5f1
        Shared id: cygwin1S4

Can't find the cygrunsrv utility, skipping services check.

Cygwin Package Information
Package              Version
_update-info-dir     00545-1
alternatives         1.3.29a-1
ash                  20040127-3
base-files           3.7-1
base-passwd          2.2-1
bash                 3.2.25-16
bzip2                1.0.3-2
coreutils            6.9-5
crypt                1.1-1
cygutils             1.3.2-1
cygwin               1.5.24-2
cygwin-doc           1.4-4
editrights           1.01-1
findutils            4.3.8-1
gawk                 3.1.5-4
grep                 2.5.1a-4
groff                1.18.1-2
gzip                 1.3.12-2
less                 382-1
libbz2_1             1.0.3-2
libiconv2            1.11-1
libintl2             0.12.1-3
libintl3             0.14.5-1
libintl8             0.15-1
libncurses8          5.5-3
libpcre0             7.2-1
libpopt0             1.6.4-4
libreadline6         5.2.7-9
login                1.9-7
man                  1.6e-1
mktemp               1.5-4
rebase               2.4.3-1
run                  1.1.10-1
sed                  4.1.5-2
tar                  1.18-2
termcap              20050421-1
terminfo             5.5_20061104-1
texinfo              4.8a-1
which                1.7-1
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