Mailing-List:	contact cygwin-help AT sourceware DOT cygnus DOT com; run by ezmlm
List-Subscribe:	<mailto:cygwin-subscribe AT sources DOT redhat DOT com>
List-Archive:	<http://sources.redhat.com/ml/cygwin/>
List-Post:	<mailto:cygwin AT sources DOT redhat DOT com>
List-Help:	<mailto:cygwin-help AT sources DOT redhat DOT com>, <http://sources.redhat.com/ml/#faqs>
Sender:	cygwin-owner AT sources DOT redhat DOT com
Delivered-To:	mailing list cygwin AT sources DOT redhat DOT com
Date:	Tue, 13 Feb 2001 17:28:54 -0500
From:	Christopher Faylor <cgf AT redhat DOT com>
To:	cygwin AT cygwin DOT com
Subject:	Re: Optimizing away "ReadFile" calls when Make calls stat()
Message-ID:	<20010213172854.A14080@redhat.com>
Reply-To:	cygwin AT cygwin DOT com
Mail-Followup-To:	cygwin AT cygwin DOT com
References:	<2CB1272B2212D211974D00805FCB57420AFAFCE1 AT mxmail DOT multex DOT com>
Mime-Version:	1.0
User-Agent:	Mutt/1.3.11i
In-Reply-To:	<2CB1272B2212D211974D00805FCB57420AFAFCE1@mxmail.multex.com>; from roman.puttkammer@multex.com on Tue, Feb 13, 2001 at 05:13:49PM -0500

On Tue, Feb 13, 2001 at 05:13:49PM -0500, Puttkammer, Roman wrote:
>
>> -----Original Message-----
>> From: jfaith AT lineo DOT com [mailto:jfaith AT lineo DOT com]
>> ...
>> script just did "make --version > /dev/null" one thousand times
>> ...
>> Linux: 3 sec.
>> VMWare running Linux: 9 sec.
>> DOS (batch file) 18 sec.
>> Cygwin: 30 sec.
>
>AFAIK, fork() tends to be much slower on windows than on most unixes
>such as solaris or linux.

There is no real fork on generic Win32.  Cygwin emulates the fork call and
it is, as a result, very slow.

cgf

--
Want to unsubscribe from this list?
Check out: http://cygwin.com/ml/#unsubscribe-simple

- Raw text -