Date: Wed, 13 Aug 2003 08:34:15 -0400 From: "Dr. Richard E. Hawkins" <hawk@slytherin.ds.psu.edu> To: "Cagle, John (ISS-Houston)" <john.cagle@hp.com> Cc: "Scott M. Likens" <damm@fpsn.net> Subject: Re: Dual P4 2.4Ghz Xeon With Hyperthreading enabled... Message-ID: <20030813123415.GB6964@slytherin.ds.psu.edu> In-Reply-To: <C50AB9511EE59B49B2A503CB7AE1ABD10661097F@cceexc19.americas.cpqcorp.net> References: <C50AB9511EE59B49B2A503CB7AE1ABD10661097F@cceexc19.americas.cpqcorp.net>
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On Tue, Aug 12, 2003 at 08:33:57PM -0500, Cagle, John (ISS-Houston) wrote: > I think the valid settings are only 0 or 1, with the default being 1 > which will disable all logical CPUs. If you want to enable the extra > logical CPUS, then set it to 0 (zero). They will come online > immediately. <please don't top-post; it makes following threads difficult> That can't be right. I've never done anything to configure the logical cpus on mine; they just showed up unexpectedly when i switched from stable to current. Now I have: slytherin ttyp1:hawk>sysctl -a | grep cpu kern.threads.virtual_cpu: 4 kern.ccpu: 1948 kern.smp.cpus: 4 hw.ncpu: 4 machdep.cpu_idle_hlt: 1 machdep.hlt_cpus: 10 machdep.hlt_logical_cpus: 1 machdep.logical_cpus_mask: 10 It launches four logical cpus all on it's own. It did panic during shutdown yesterday; If I read the messages right as it flashed by, it was because cpu#2 got the shutdown order. hawk -- Richard E. Hawkins, Asst. Prof. of Economics /"\ ASCII ribbon campaign dochawk@psu.edu Smeal 178 (814) 375-4700 \ / against HTML mail These opinions will not be those of X and postings. Penn State until it pays my retainer. / \
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