X-Spam-Check-By: sourceware.org
X-AntiVirus: PTMail-AV 0.3.88
X-Virus-Status: Clean (0.00512 seconds)
Mime-Version: 1.0 (Apple Message framework v746.2)
In-Reply-To: <4412EF74.1070500@byu.net>
References: <1753CE61-D772-46F7-8393-84E419E49307 AT ptnix DOT com> <4412EF74 DOT 1070500 AT byu DOT net>
X-Gpgmail-State: !signed
Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed
Message-Id: <890F74C6-8E51-405F-86CC-551170A2EA70@honeynet-pt.org>
Content-Transfer-Encoding: 7bit
From: Pedro Inacio <pedro DOT inacio AT honeynet-pt DOT org>
Subject: Re: select() too slow
Date: Sat, 11 Mar 2006 18:04:37 +0000
To: cygwin AT cygwin DOT com
Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
Precedence: bulk
List-Unsubscribe: <mailto:cygwin-unsubscribe-archive-cygwin=delorie DOT com AT cygwin DOT com>
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


On 2006/03/11, at 15:40, Eric Blake wrote:

>
> I'm afraid that this is not a very good bug report, as you have not
> attempted to describe WHAT is too slow, and have not provided a simple
> test case that compiles out of the box, with timing numbers on the  
> test
> case compared between Linux and Cygwin.  Cygwin is only as fast as the
> underlying Windows system calls permit it to be.  Also, cygwin is open
> source.  Go look at the source code to select() and you will see  
> that it
> is very complex, since Windows does not provide good hooks for an
> efficient implementation.  If you would like it to be faster, then
> consider writing a patch to cygwin that can speed it up.
>


Eric,

first of all this is not a bug report, but just trying to understand  
what might be the problem.
If I knew what the problem is I was not asking if there is any known  
issue, a fix, or something.
I've read the archives before posting and there are some guys with  
similar problems but no answers.

I know that the select() function on windows is quite different and  
not very handy.
One thing is weird for sure, similar code works just fine on Unix but  
is not very performante on Windows.

I want to know if someone have found some way to deal with this  
strange issue.


Thanks

--
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/