Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com Delivered-To: mailing list cygwin AT cygwin DOT com Message-ID: <007301c291ff$eb9ce050$78d96f83@pomello> From: "Max Bowsher" To: "thomas" , References: <777770015 DOT 20021122040845 AT huno DOT net> Subject: Re: pipe performance problem Date: Fri, 22 Nov 2002 08:19:47 -0000 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 thomas wrote: > it seems that the pipe code with recent cygwin versions causes a > performance problem when much data (3.6 MB per second in this case) is > transferred from one program to another. > > i use mkisofs to make an iso filesystem from files on the fly and pipe > the output directly to cdrecord which writes the fs to the cd-r. cmd > line looks like this: > > mkisofs -J -R -l * | cdrecord -dev=1,0,0 -v -dummy -speed=24 - Out of interest, does it work if you use a temporary file, instead of a pipe? (Just want to narrow the problem as far as possible). Max. -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/