Date: Tue, 08 Jul 2003 13:13:44 -0400 (EDT) From: John Baldwin <jhb@FreeBSD.org> To: Lukas Ertl <l.ertl@univie.ac.at> Cc: freebsd-current@freebsd.org Subject: Re: HTT on single CPU? Message-ID: <XFMail.20030708131344.jhb@FreeBSD.org> In-Reply-To: <20030708133504.L16193@pcle2.cc.univie.ac.at>
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On 08-Jul-2003 Lukas Ertl wrote: > On Tue, 8 Jul 2003, Marco Wertejuk wrote: > >> Hi Lukas, >> >> | how do I enable Hyperthreading on a box that has just a single CPU? >> >> you just have to enable Hyperthreading in the computers >> BIOS and compile a SMP Kernel with options HTT. > > I would need to look a second time, but there is no such BIOS option, and > "options HTT" was nuked in 5.1, replaced by machdep.hlt_logical_cpus, > which I don't have on my system. You need to enable SMP and APIC_IO in your kernel to use HTT. Also, the BIOS setting probably won't make a difference. -- John Baldwin <jhb@FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/
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