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Date: Sat, 21 Aug 2010 16:04:18 +0200
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: [ANNOUNCEMENT] Updated: cygwin-1.7.6-1
Message-ID: <20100821140418.GT11340@calimero.vinschen.de>
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On Aug 21 15:48, Corinna Vinschen wrote:
> On Aug 21 14:18, Angelo Graziosi wrote:
> > Larry Hall wrote:
> > >>Corinna Vinschen wrote:
> > >>>- Improve performance of stat and a few other functions.  ls(1) should
> > >>>  be up to 30% faster
> > >>
> > >>I have a directory (500MB, 30 files) which contains mainly 'exe' (setups for TB, FF, OO etc.). If I try 'ls -l' in this directory, the first time it take about 30 seconds to list the files. After the first time, the listing is almost without delay. The same happens also with 'ls -l /usr/bin'.
> > >>
> > >>When there is the 'hang' (30 secs.), Task Manager shows that AVG9 takes about 50% of CPU: this occurs *only* with 1.7.6 but _not_ with 1.7.5, with which 'ls -l' is almost immediate, regardless of the number and type of files.
> > >>
> > >>Obviously I have tested this, each time, with a 'fresh machine', to avoid 'cache' effects.
> > >>
> > >>The system is WinXP SP3, AMD Athlon 64X2DC 2.03GHz, 1.75GB RAM.
> > >
> > >Try a recent snapshot:
> > >
> > ><http://cygwin.com/snapshots/>
> > 
> > I have tried cygwin1-20100820.dll.bz2 and
> > cygwin-inst-20100820.tar.bz2, but it is even worse: Cygwin.bat DOES
> > NOT start at all and Windows complains with a message like this:
> > 
> > ...Cannot find entry point CreateProcessAsUserW in KERNEL32.DLL...
> 
> The problem is, there *is* an entry point CreateProcessAsUserW in the
> Win32 DLL kernel32.dll.
> 
> At least on NT-based systems.  What strikes me as weird is that
> kernel32.dll usually is stored with its name in all lowercase letters on
> NT-based systems.  The fact that you see an all uppercase KERNEL32.DLL
> looks like you have such a DLL in your path, possible from Windows
> 95/98/Me, possibly installed by some third party stuff, at some point
> which is found earlier in the DLL search path than the lowercase
> kernel32.dll in C:\Windows\System32.

Oh, and, the call to CreateProcessAsUserW in cygwin1.dll is *old*, as in
"May 2008".  The former call to CreateProcessAsUserA is in Cygwin for
over 10 years.  However, just to be sure I installed the cygwin1-20100820
snapshot DLL on my W7 box and it works fine.  This is quite certainly a
local problem.  
Btw., after downloading cygwin1-20100820.dll.bz2 and bunzipping it, did
you make sure the executable bits are set (chmod +x cygwin1-20100820.dll)?


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat

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