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Mail Archives: cygwin/2005/08/25/07:50:37

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Date: Thu, 25 Aug 2005 13:50:19 +0200
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: Problems with Windows threads and cygwin sleep()
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On Aug 25 13:40, Raul Metsma wrote:
> Seems this is something related CPU-s or total Windows thread count
> I tested it on Windwos 2003, where are 2x2,4GHz Intel Xeon
> There occurs this issue on 800 threads

You're right, when raising the number of threads, I see this test
gradually taking more CPU time the more threads it has, nearly 95%
with 800 threads.

As long as one starts it from a cmd shell and no Cygwin application is
present, the CPU keeps low under 5%.  As soon as a Cygwin process is
present...

Hmm.  Weird.


Corinna


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

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