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X-Authentication-Warning: slinky.cs.nyu.edu: pechtcha owned process doing -bs
Date: Fri, 14 Mar 2003 16:11:59 -0500 (EST)
From: Igor Pechtchanski <pechtcha AT cs DOT nyu DOT edu>
Reply-To: cygwin AT cygwin DOT com
To: Sudheer Tumuluru <stumuluru AT real DOT com>
cc: cygwin AT cygwin DOT com
Subject: Re: 100% CPU Usage when starting Win32 process through cron
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Does adding "tty" to your CYGWIN environment variable and rebooting affect
this?  If not, try attaching to the 100% CPU process with gdb (yes, you
can attach to Windows processes that way too) or a VC++ debugger, and see
where it is spending the time...
	Igor

On Fri, 14 Mar 2003, Sudheer Tumuluru wrote:

> I upgraded my cygwin installation to the latest one but the problem
> still exists. I still see the process occupying 99% CPU time. One thing
> that might be worth mentioning is that the WIn32 process is accessing
> the audio/video card(s) device drivers. The process works fine
> functionally except for the CPU usage. Here's the latest cygcheck.out
> file after update (this is on the WinXP single CPU box also exhibiting
> the same behavior). Any pointers please?
>
> Thanks in advance,
> Sudheer T
>
> Thorsten Kampe wrote:
>
> > * Sudheer Tumuluru (03-03-12 21:51 +0100)
> > > Thorsten Kampe wrote:
> > >> * Sudheer Tumuluru (03-03-12 04:46 +0100)
> > >>>         I have a Win32 process which runs fine from the cygwin bash or
> > >>> Windows command prompt. But when I try to put it in a cron job, the
> > >>> process comes up and freezes the machine.
> > >>
> > >> cron version? What "Win32 process"? OS version?
> > >
> > > cron version 3.0.1-7. Please excuse me for not sending the
> > > cygcheck.out earlier. It is attached this time. This is a native
> > > Win32 application written in C++, compiled using the VC++ compiler.
> > > It is a console-based application with no GUI component whatsoever.
> > > Windows OS version: Windows 2000 Professional Dual Proc Machine.
> > > Identical behavior on Single Proc machine with Windows XP
> > > Professional.
> >
> > Your OS is uptodate and this indicates that it's Cygwin related.
> >
> > This is what I noticed:
> > Your TERM should be 'cygwin' unless you're using rxvt, but it's
> > 'xterm'.
> >
> > You should update your Cygwin installation - at least Cygwin itself
> > and bash. Best is to update everything.
> >
> > >>> Is there some environment setting I am missing that is causing
> > >>> this problem.
> > >>
> > >> So what is your "environment setting"? echo $CYGWIN
> > >
> > > echo $CYGWIN gives "ntsec".
> >
> > Mine is "binmode codepage:oem glob:ignorecase ntea ntsec smbntsec title tty".
> > Try this or try at least adding tty.
> >
> > Thorsten

-- 
				http://cs.nyu.edu/~pechtcha/
      |\      _,,,---,,_		pechtcha AT cs DOT nyu DOT edu
ZZZzz /,`.-'`'    -.  ;-;;,_		igor AT watson DOT ibm DOT com
     |,4-  ) )-,_. ,\ (  `'-'		Igor Pechtchanski
    '---''(_/--'  `-'\_) fL	a.k.a JaguaR-R-R-r-r-r-.-.-.  Meow!

Oh, boy, virtual memory! Now I'm gonna make myself a really *big* RAMdisk!
  -- /usr/games/fortune


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