From owner-freebsd-amd64@FreeBSD.ORG Tue Apr 19 18:18:34 2005 Return-Path: Delivered-To: freebsd-amd64@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 4A51A16A4CE for ; Tue, 19 Apr 2005 18:18:34 +0000 (GMT) Received: from dragon.NUXI.org (trang.nuxi.com [66.93.134.19]) by mx1.FreeBSD.org (Postfix) with ESMTP id EC4D443D1F for ; Tue, 19 Apr 2005 18:18:33 +0000 (GMT) (envelope-from obrien@NUXI.com) Received: from dragon.NUXI.org (obrien@localhost [127.0.0.1]) by dragon.NUXI.org (8.13.3/8.13.3) with ESMTP id j3JIIX5n027891; Tue, 19 Apr 2005 11:18:33 -0700 (PDT) (envelope-from obrien@dragon.NUXI.org) Received: (from obrien@localhost) by dragon.NUXI.org (8.13.3/8.13.1/Submit) id j3JIIVlC027890; Tue, 19 Apr 2005 11:18:31 -0700 (PDT) (envelope-from obrien) Date: Tue, 19 Apr 2005 11:18:31 -0700 From: "David O'Brien" To: Scott Long Message-ID: <20050419181831.GA27679@dragon.NUXI.org> References: <200504131714.20356.jkim@niksun.com> <86fyxt1ovu.fsf@xps.des.no> <20050415005850.GB80903@dragon.NUXI.org> <2fd864e050414180911e4e5be@mail.gmail.com> <20050415211600.GA1473@dragon.NUXI.org> <1113603823.91832.7.camel@cream.xbsd.org> <86ekdbdnqh.fsf@xps.des.no> <4260F103.5050309@mail.uni-mainz.de> <20050419173247.GB26152@dragon.NUXI.org> <42654719.7030607@samsco.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <42654719.7030607@samsco.org> X-Operating-System: FreeBSD 6.0-CURRENT Organization: The NUXI BSD Group X-Pgp-Rsa-Fingerprint: B7 4D 3E E9 11 39 5F A3 90 76 5D 69 58 D9 98 7A X-Pgp-Rsa-Keyid: 1024/34F9F9D5 User-Agent: Mutt/1.5.9i cc: "O. Hartmann" cc: freebsd-amd64@freebsd.org Subject: Re: Recommendations? X-BeenThere: freebsd-amd64@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: obrien@freebsd.org List-Id: Porting FreeBSD to the AMD64 platform List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 19 Apr 2005 18:18:34 -0000 On Tue, Apr 19, 2005 at 11:59:53AM -0600, Scott Long wrote: > David O'Brien wrote: > >On Sat, Apr 16, 2005 at 01:03:31PM +0200, O. Hartmann wrote: > > > >>I have ASUS A8N-SLI Deluxe mobo. BIOS revision is 1006. I have no > >>problems with > >>ACPI. APIC works with NO_MIXED_MODE commented out in kernel. > > > > > >Disable the NO_MIXED_MODE option is a performance degradation. > >Bending over and taking it up the a** across all motherboards (which DES > >has forced on 5.4-RELEASE); makes the ASUS A8N-SLI Deluxe not "perfectly > >working". > > > > According to the APIC maintainer, and according to some quick benchmarks > myself, mixed mode has almost no performance impact. Maybe with the latest code - if you're talking about before the very recent jhb commits. Peter has said several times there is(was) a performance issue. 'mixed mode' also is (was?) expressly prohibited by the ACPI spec. -- -- David (obrien@FreeBSD.org)