From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 11312 invoked by alias); 24 Jun 2004 10:14:53 -0000 Mailing-List: contact gcc-patches-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-patches-owner@gcc.gnu.org Received: (qmail 11262 invoked from network); 24 Jun 2004 10:14:50 -0000 Received: from unknown (HELO lon-mail-1.gradwell.net) (193.111.201.125) by sourceware.org with SMTP; 24 Jun 2004 10:14:50 -0000 Received: (qmail 54089 invoked from network); 24 Jun 2004 10:14:25 -0000 Received: from digraph.polyomino.org.uk (postmaster%pop3.polyomino.org.uk@81.187.227.50) by lon-mail-1.gradwell.net with SMTP; 24 Jun 2004 10:14:25 -0000 Received: from jsm28 (helo=localhost) by digraph.polyomino.org.uk with local-esmtp (Exim 4.34) id 1BdRFR-0002i8-3o; Thu, 24 Jun 2004 10:14:25 +0000 Date: Thu, 24 Jun 2004 14:59:00 -0000 From: "Joseph S. Myers" X-X-Sender: jsm28@digraph.polyomino.org.uk To: Geoffrey Keating cc: Richard Kenner , gcc-patches@gcc.gnu.org Subject: Re: Patch to allow Ada to work with tree-ssa In-Reply-To: Message-ID: References: <10406221853.AA08995@vlsi1.ultra.nyu.edu> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-SW-Source: 2004-06/txt/msg01936.txt.bz2 On Tue, 22 Jun 2004, Geoffrey Keating wrote: > larger. In addition, programs have gotten larger, which soaks up much > of the CPU speed improvement. As illustrated by the growth of GCC itself. My bootstrap plus testsuite run times on constant hardware have gone from under one hour a bit over three years ago to over three hours now (and this is artificially low because of the temporary disabling of Ada). Much of this is the growth in GCC itself, but a significant part must be GCC slowing down. By way of comparison with software where more attention has been paid to improving performance, look at the Mozilla 1.7 release notes : "When compared to Mozilla 1.6, Mozilla 1.7 is 7% faster at startup, is 8% faster to open a window, has 9% faster page loading, and is 5% smaller in binary size.". Previous Mozilla releases have also improved performance - despite new features being added. -- Joseph S. Myers http://www.srcf.ucam.org/~jsm28/gcc/ jsm@polyomino.org.uk (personal mail) jsm28@gcc.gnu.org (Bugzilla assignments and CCs)