From owner-freebsd-stable Sun Mar 11 12:42:14 2001 Delivered-To: freebsd-stable@freebsd.org Received: from scully.zoominternet.net (scully.zoominternet.net [63.67.120.3]) by hub.freebsd.org (Postfix) with SMTP id 2511237B71A for ; Sun, 11 Mar 2001 12:42:11 -0800 (PST) (envelope-from dmmiller@cvzoom.net) Received: (qmail 15850 invoked from network); 11 Mar 2001 20:36:14 -0000 Received: from acs-24-154-53-165.zoominternet.net (HELO cvzoom.net) (24.154.53.165) by scully.zoominternet.net with SMTP; 11 Mar 2001 20:36:14 -0000 Message-ID: <3AABE322.484DA5B9@cvzoom.net> Date: Sun, 11 Mar 2001 15:42:10 -0500 From: Donn Miller X-Mailer: Mozilla 4.76 [en] (X11; U; Linux 2.2.12 i386) X-Accept-Language: en MIME-Version: 1.0 To: Roman Shterenzon Cc: Kris Kennaway , stable@FreeBSD.ORG Subject: Re: HEADS UP: lots of updates References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Roman Shterenzon wrote: > I *think* that for K6-2 having -march=pentium gives better performance > than -march=k6 ; could someone prove it or prove it wrong? Gcc is a very unpredictable compiler. For example, on a Pentium MMX, I've noticed in my tests that code compiled with -O2 ran slightly faster than code compiled with -march=pentium -O2. Of course, they were very simple tests. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message