Date: Thu, 11 May 2006 19:47:34 +0200 From: "OxY" <oxy@field.hu> To: "Shane Ambler" <Shane@007Marketing.com> Cc: freebsd-hackers@freebsd.org Subject: Re: enabling hyper-threading on intel dual-core Message-ID: <000e01c67522$fc168530$0201a8c0@oxy> References: <C089ABDB.40CE7%Shane@007Marketing.com>
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thanks a lot for your help! ----- Original Message ----- From: "Shane Ambler" <Shane@007Marketing.com> To: "FreeBSD Mailing Lists" <freebsd-performance@freebsd.org> Sent: Thursday, May 11, 2006 7:34 PM Subject: Re: enabling hyper-threading on intel dual-core > On 12/5/2006 1:30, "OxY" <oxy@field.hu> wrote: > >> hi! >> >> i just bought an Intel Pentium D-930 (3ghz dual-core) >> and wonder why i just only have CPU0 and CPU1, when i compile with SMP... >> >> sysctl says: >> machdep.cpu_idle_hlt: 0 >> >> is it right or i should see CPU 2 and 3 starting during the boot? >> >> thanks for your help! >> >> ps: i even compiled this option in kernel, can't see any change >> >> options MPTABLE_FORCE_HTT # Enable HTT CPUs with the MP >> Table >> _______________________________________________ >> freebsd-performance@freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-performance >> To unsubscribe, send any mail to >> "freebsd-performance-unsubscribe@freebsd.org" >> > > Sounds right to me - the 930 is a dual core and will show up as two cpu's > cpu0 and cpu1. > > The early dual core's don't support hyperthreading - the Pentium-D > extreme > edition does (Pentium D-955 at 3.46Ghz is one) and will show up as 4 > cpu's. > Currently at 3x the price. > > > -- > > Shane Ambler > Shane@007Marketing.com > > > _______________________________________________ > freebsd-performance@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-performance > To unsubscribe, send any mail to > "freebsd-performance-unsubscribe@freebsd.org"
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