Date: Mon, 16 Jan 2006 19:23:34 -0400 (AST) From: "Marc G. Fournier" <scrappy@hub.org> To: Vivek Khera <vivek@khera.org> Cc: freebsd-amd64@freebsd.org Subject: Re: first time with a 64bit CPU ... kernel config ... Message-ID: <20060116192313.R28752@ganymede.hub.org> In-Reply-To: <13F6B269-3C1B-4F9E-ACD6-412AA9162AD3@khera.org> References: <20060110235259.N1006@ganymede.hub.org> <4294ECA5-C8B6-484A-94BA-5EBC61498280@khera.org> <20060114012450.U28752@ganymede.hub.org> <D3F5D17A-028D-481D-81A8-D1BCE6BD0137@khera.org> <20060116152427.A28752@ganymede.hub.org> <13F6B269-3C1B-4F9E-ACD6-412AA9162AD3@khera.org>
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On Mon, 16 Jan 2006, Vivek Khera wrote: > > On Jan 16, 2006, at 2:25 PM, Marc G. Fournier wrote: > >> perfect, thanks ... final question for now ... when I get and put in the >> second CPU, is there anything I need to add/change in the kernel config >> file for it, or will it just be auto-detected? > > options SMP > > done. i'm fairly confident you can boot such a kernel on a single CPU too. > > also, make sure you don't have hyperthreading on these processors on. it > seems to just degrade performance. if you build a SMP kernel, it will try to > use hyperthreading unless you tell it not to and/or it is disabled in bios. 'k, will have to check the BIOS on this one, but how does one disable it within FreeBSD 6.x? Same as 4.x? ---- Marc G. Fournier Hub.Org Networking Services (http://www.hub.org) Email: scrappy@hub.org Yahoo!: yscrappy ICQ: 7615664
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