From owner-freebsd-chat Thu Apr 12 8:20:17 2001 Delivered-To: freebsd-chat@freebsd.org Received: from bubble.via-net-works.ie (bubble.via-net-works.ie [212.17.32.27]) by hub.freebsd.org (Postfix) with ESMTP id 66FFE37B43F for ; Thu, 12 Apr 2001 08:20:13 -0700 (PDT) (envelope-from relyod@cooperationireland.org) Received: from strawberry.dialups.via-net-works.ie ([212.17.34.228] helo=cooperationireland.org) by bubble.via-net-works.ie with esmtp (Exim 3.20 #2) id 14nitA-0007de-00 for freebsd-chat@freebsd.org; Thu, 12 Apr 2001 15:20:04 +0000 Received: from it1 (it1 [199.107.2.129]) by cooperationireland.org (8.11.1/8.11.1) with SMTP id f3CFK3k61769 for ; Thu, 12 Apr 2001 16:20:04 +0100 (IST) (envelope-from relyod@cooperationireland.org) Message-Id: <3.0.5.32.20010412162005.008c1d70@199.107.2.1> X-Sender: relyod@199.107.2.1 X-Mailer: QUALCOMM Windows Eudora Light Version 3.0.5 (32) Date: Thu, 12 Apr 2001 16:20:05 +0100 To: freebsd-chat@freebsd.org From: Mike Doyle Subject: Question regarding compilers etc. Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-freebsd-chat@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org I was doing a little reading of the on-line documentation for gcc, and I noticed that the i386 family of chips that it can optimise for includes i386, i486, pentium and pentium pro. It has no mention of PII or PIII specific optimisations. Neither does it mention any of the Cyrix or AMD class processors. While code targetted at a pentium or pentium pro will run on these processors would there by anything gained by optimising code for the later processors? Would such optimisation, if used, to compile a custom kernel, or even custom-compile a whole "buildworld" deliver any significant performance gains? Just wondering... Mike <>< ============================================================= ><> Michael Doyle email: relyod@cooperationireland.org Network Administrator personal email: relyod@indigo.ie Co-operation Ireland http://www.cooperationireland.org/ Phone: +353-1-661 0588 Fax: +353-1-661 8456 ********************************************************************* To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-chat" in the body of the message