Mailing-List: contact cygwin-help@sourceware.cygnus.com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@sources.redhat.com Delivered-To: mailing list cygwin@sources.redhat.com X-Originating-IP: [212.54.81.249] From: "Jonas Jensen" To: "Cygwin List" References: <20000902123113.A1626@cygnus.com> Subject: Re: printf is faster when piped through tee Date: Sat, 2 Sep 2000 20:59:23 +0200 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4133.2400 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4133.2400 Message-ID: X-OriginalArrivalTime: 02 Sep 2000 18:59:05.0071 (UTC) FILETIME=[DD7837F0:01C0150F] Chris Faylor wrote: > On Sat, Sep 02, 2000 at 04:11:08PM +0200, Jonas Jensen wrote: > >Something's wrong with the performance of printf. When compiling with > >gcc, printf executes much slower than with Microsoft's "cl". The funny > >thing is that when I pipe those programs through "tee", they're both > >(equally) fast. > > Thanks for the first part of your report. I'm awaiting your analysis of > why this is the case. I have no idea! AFAICS, tee and cat (which work properly) use write() for outputting, but this function has the same problem when I call it. -mno-cygwin makes that problem go away. Did you do this on purpose or something? It seems a bit weird that a write takes _excactly_ 1/100th of a second, both on my GeForce-powered desktop comp. and my weak laptop... -- Want to unsubscribe from this list? Send a message to cygwin-unsubscribe@sourceware.cygnus.com