Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Subscribe: <mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive: <http://sourceware.org/ml/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender: cygwin-owner AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
Delivered-To: mailing list cygwin AT cygwin DOT com
X-Authenticated: #14308112
Date: Thu, 25 Aug 2005 14:40:39 +0300
From: Pavel Tsekov <ptsekov AT gmx DOT net>
X-X-Sender: ptsekov AT mordor
To: Raul Metsma <raul AT vihmapuu DOT ee>
cc: cygwin AT cygwin DOT com
Subject: Re: Problems with Windows threads and cygwin sleep()
In-Reply-To: <430D8FC8.8090906@vihmapuu.ee>
Message-ID: <Pine.CYG.4.58.0508251435350.1656@mordor>
References: <20050824185143 DOT 76C69A01 AT data DOT zone DOT ee>   <Pine DOT LNX DOT 4 DOT 62 DOT 0508241458460 DOT 26825 AT ns DOT pyerotechnics DOT com> <430D688D DOT 1070205 AT vihmapuu DOT ee>  <Pine DOT CYG DOT 4 DOT 58 DOT 0508251054550 DOT 1272 AT mordor> <430D8FC8 DOT 8090906 AT vihmapuu DOT ee>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
X-Y-GMX-Trusted: 0
X-IsSubscribed: yes

Hello,

On Thu, 25 Aug 2005, Raul Metsma wrote:

> Ohh never get this right :(
> Actually I am more system administrator than programmer
>
> Lets try again:
> http://rtedev.com/~raul/threads/threads.c
> Compile this program under mingw
> gcc -o threads.exe threads.c
> ./threads 600
>
> now compile
> http://rtedev.com/~raul/threads/main.c
> with cygwin
> and when I execute this, then threads.exe will eat 100% CPU

Ok, it happens here with 400 or more threads. The program eats CPU time
when compiled with Cygwin and without Cygwin (-mno-cygwin). So this
doesn't seem to be related to Cygwin but to Windows itself.

I am running Windows 2000 SP4 on a PIII 1.1 Ghz with 256 Mb of ram.

--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Problem reports:       http://cygwin.com/problems.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/