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 Subject: dramatic slowdown of C code To: cygwin AT cygwin DOT com Message-ID: From: apjaworski AT mmm DOT com Date: Thu, 27 Jun 2002 10:42:00 -0500 MIME-Version: 1.0 Content-type: text/plain; charset=us-ascii Hi, I am not sure if you are aware of this, but the recent upgrade of the Cygwin DLL (to version 1.3.11-3) caused a dramatic (3 to 7 fold) slowdown of gcc compiled code. The code is a preprocessor of large text files. It essentially reads a file (up to 1,500,000 lines) and writes a reformatted file (essentially the same number of lines). It seems like the slowdown occurs during file IO. I am noticing 3-fold decrease on reads and 7-fold decrease on writes. I routinely use the setup utility to keep my Cygwin environment up to date. Is it safe to downgrade the cygwin module to 1.3.10 (I just downloaded the cygwin-1.3.10-1.tar.bz2). Thanks in advance for your help. Andy __________________________________ Andy Jaworski Engineering Systems Technology Center 3M Center, 518-1-01 St. Paul, MN 55144-1000 ----- E-mail: apjaworski AT mmm DOT com Tel: (651) 733-6092 Fax: (651) 736-3122 -- 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/