From owner-freebsd-current Tue Jan 23 10:13:58 1996 Return-Path: owner-current Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id KAA07302 for current-outgoing; Tue, 23 Jan 1996 10:13:58 -0800 (PST) Received: from phaeton.artisoft.com (phaeton.Artisoft.COM [198.17.250.211]) by freefall.freebsd.org (8.7.3/8.7.3) with SMTP id KAA07297 for ; Tue, 23 Jan 1996 10:13:53 -0800 (PST) Received: (from terry@localhost) by phaeton.artisoft.com (8.6.11/8.6.9) id LAA17908; Tue, 23 Jan 1996 11:05:10 -0700 From: Terry Lambert Message-Id: <199601231805.LAA17908@phaeton.artisoft.com> Subject: Re: dhrystone 2.1 result for gcc-2.7.2 with Pentium patches is poor To: jdp@polstra.com (John Polstra) Date: Tue, 23 Jan 1996 11:05:10 -0700 (MST) Cc: freebsd-current@FreeBSD.org In-Reply-To: <4e3425$e1d@austin.polstra.com> from "John Polstra" at Jan 23, 96 08:57:41 am X-Mailer: ELM [version 2.4 PL24] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-current@FreeBSD.org Precedence: bulk > In article , > Andreas Klemm wrote: > > On a WWW Server I found a Pentium patch (gcc-2.7.2-2.7.2p-pl6.diff) > > for gcc 2.7.2. My experience with dhrystone 2.1 are, that FreeBSD's > > gcc 2.6.3 is a bit faster .... > > > > about 163000 Dhrystones with gcc 2.6.3 and "only" 161000 dhrystones > > with the patches gcc 2.7.2 ... poor result. Other experiences ? > > I haven't tried those patches, but this kind of thing comes up regularly > in compiler-related newsgroups. Look: the Dhrystone "benchmark" is > _completely_ worthless and meaningless for today's compilers. You are > wasting your time messing with it. It will only mislead you. You mean "it is so useless that the GCC people are no longer optimizing for it"? 8-) 8-) 8-). Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers.