Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 23 Mar 2001 15:42:31 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 23 Mar 2001 15:42:12 -0500 Received: from smtp.primusdsl.net ([209.225.164.93]:265 "EHLO mailhost.digitalselect.net") by vger.kernel.org with ESMTP id ; Fri, 23 Mar 2001 15:42:08 -0500 Date: Fri, 23 Mar 2001 15:43:28 -0500 From: James Lewis Nance To: linux-kernel@vger.kernel.org Subject: Re: Linux 2.4.2 fails to merge mmap areas, 700% slowdown. Message-ID: <20010323154328.A14173@bessie.dyndns.org> In-Reply-To: <15032.1585.623431.370770@pizda.ninka.net> <20010322193549.D6690@unthought.net> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit User-Agent: Mutt/1.2.5i In-Reply-To: <20010322193549.D6690@unthought.net>; from jakob@unthought.net on Thu, Mar 22, 2001 at 07:35:49PM +0100 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Mar 22, 2001 at 07:35:49PM +0100, Jakob ?stergaard wrote: > My code here is quite template heavy, and I suspect that's what's triggering > it. In fact, I can't compile our development code with optimization, because > GCC runs out of memory (it only allocates some 300-500 MB, but each page has > it's own map in /proc/pid/maps, and a wc -l /proc/pid/maps doesn't finish for > minutes). My typical GCC eats 100-200 MB and runs for several minutes. Would it be possible for you to post the preprocessor outout to this list? It would be quite nice to have this testcase. Jim - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/