Date: Tue, 19 Apr 2005 11:18:31 -0700 From: "David O'Brien" <obrien@freebsd.org> To: Scott Long <scottl@samsco.org> Cc: freebsd-amd64@freebsd.org Subject: Re: Recommendations? Message-ID: <20050419181831.GA27679@dragon.NUXI.org> In-Reply-To: <42654719.7030607@samsco.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>
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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)
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