From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 4040 invoked by alias); 3 Jan 2003 14:05:16 -0000 Mailing-List: contact gcc-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-owner@gcc.gnu.org Received: (qmail 4019 invoked from network); 3 Jan 2003 14:05:15 -0000 Received: from unknown (HELO nikam.ms.mff.cuni.cz) (195.113.18.106) by 209.249.29.67 with SMTP; 3 Jan 2003 14:05:15 -0000 Received: from camelot.ms.mff.cuni.cz (kampanus.ms.mff.cuni.cz [195.113.18.107]) by nikam.ms.mff.cuni.cz (Postfix) with SMTP id E6A3C4DE18; Fri, 3 Jan 2003 15:05:00 +0100 (CET) Received: by camelot.ms.mff.cuni.cz (sSMTP sendmail emulation); Fri, 3 Jan 2003 15:05:02 +0100 Date: Fri, 03 Jan 2003 14:05:00 -0000 From: Jan Hubicka To: Fergus Henderson Cc: Jan Hubicka , Gerald Pfeifer , Nathanael Nerode , gcc@gcc.gnu.org Subject: Re: GCC still getting a lot slower Message-ID: <20030103140502.GA4000@kam.mff.cuni.cz> References: <20021231214116.GA1953@doctormoo> <20030102142107.GA21227@kam.mff.cuni.cz> <20030103002119.GB10549@ceres.cs.mu.oz.au> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030103002119.GB10549@ceres.cs.mu.oz.au> User-Agent: Mutt/1.3.28i X-SW-Source: 2003-01/txt/msg00095.txt.bz2 > On 02-Jan-2003, Jan Hubicka wrote: > > > > For C performance I think it can be practical to just benchmark linux > > kernel build - it is fixed piece as it does not include any external > > headers, large enought to make measurements hopefully stable enought and > > tests performance of "usual hand writen C program" that (for C) is about > > the most important. > > The trouble is, which version? > The Linux kernel itself is not stable. To make a useful benchmark, > you need to pick a specific version of the Linux kernel. > > Old versions of the Linux kernel don't work with current versions of GCC, > and probably current versions of the Linux kernel won't work with future > versions of GCC. Yes, but I think there is large enought overlap to make the measurements usefull. In casee we are interested in compilation speed only, we can simply fix new syntax errors. Honza > > -- > Fergus Henderson | "I have always known that the pursuit > The University of Melbourne | of excellence is a lethal habit" > WWW: | -- the last words of T. S. Garp.