Date: Mon, 16 Jan 2006 14:51:37 -0500 From: Vivek Khera <vivek@khera.org> To: "Marc G. Fournier" <scrappy@hub.org> Cc: freebsd-amd64@freebsd.org Subject: Re: first time with a 64bit CPU ... kernel config ... Message-ID: <13F6B269-3C1B-4F9E-ACD6-412AA9162AD3@khera.org> In-Reply-To: <20060116152427.A28752@ganymede.hub.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>
next in thread | previous in thread | raw e-mail | index | archive | help
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.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?13F6B269-3C1B-4F9E-ACD6-412AA9162AD3>