Some more interesting findings in this field lead me to another related question: what is the relation between kern.smp.cpus, kern.smp.active and kern.smp.maxcpus? To my understanding, it should be: If the machine has more than one CPU, and SMP and apic are enabled in the config file, then kern.smp.cpus = nof cpus in the system kern.smp.active = 1 kern.smp.maxcpus = 16 else kern.smp.cpus = 1 kern.smp.active = 0 kern.smp.maxcpus = 1 This is the expected result, and also the result I get from my single CPU Pentium 3, running 6.3-RELEASE: kern.smp.cpus: 1 kern.smp.active: 0 kern.smp.maxcpus: 1 From my single CPU sparc64, running 7.0-PRERELEASE, I get: kern.smp.cpus: 1 kern.smp.active: 0 kern.smp.maxcpus: 16 <-- why not 1?? From my Core2Due, running 8.0-CURRENT, I get: kern.smp.cpus: 2 kern.smp.active: 1 kern.smp.maxcpus: 16 which is OK, but nevertheless SMP is not defined in sys/param.h (see previous posts). Thanks for any insight, -- Pietro Cerutti PGP Public Key: http://gahr.ch/pgp
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