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From: Rolf Campbell <rcampbell AT tropicnetworks DOT com>
Subject: Re: Cygwin signal bandwidth
Date: Sun, 09 Feb 2003 14:05:18 -0500
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Message-ID: <b268le$ce6$1@main.gmane.org>
References: <b261o2$lo0$1 AT main DOT gmane DOT org>
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In-Reply-To: <b261o2$lo0$1@main.gmane.org>

Sorry about the multiple posts, I was trying to use gmane and it delayed 
delivery of my messages for 90 minutes, so I did the naive thing and 
sent it two more times.

-Rolf

Rolf Campbell wrote:
> While working on a project, I had the need to run a function every 
> millisecond.  So, my first attempt was to fork() and then loop sending a 
> signal then delaying 1ms.  What I found was that a cygwin process can 
> only recieve about 100 signals/sec before it uses up 100% of the 
> processor (on a PIII/850MHz).
> 
> Is it reasonable for me to conclude that cygwin uses about 8,000,000 
> cycles to process a single signal, or have I done something wrong?
> 
> -Rolf



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