single or dual processor 2664

Indeed, the physical ID only seems to be used on hyperthreaded systems. (I don't have access to a dual-core system to know how those show up.)

How many CPUs are there supposed to be on an "Pentium D"? No 'core id' there, and the physicalid is the same for both.

% catproc-cpuinfo processor : 0 vendorid : GenuineIntel cpu family : 15 model : 4 model name : Intel(R) Pentium(R) D CPU 2.80GHz stepping : 7 cpu MHz : 2794.323 cache size : 1024 KB physical id : 0 siblings : 2 fdivbug : no hltbug : no f00fbug : no comabug : no fpu : yes fpuexception : yes cpuid level : 5 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm pni monitor dscpl cid cx16 xtpr lahflm bogomips : 5521.40

processor : 1 vendorid : GenuineIntel cpu family : 15 model : 4 model name : Intel(R) Pentium(R) D CPU 2.80GHz stepping : 7 cpu MHz : 2794.323 cache size : 1024 KB physical id : 0 siblings : 2 fdivbug : no hltbug : no f00fbug : no comabug : no fpu : yes fpuexception : yes cpuid level : 5 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm pni monitor dscpl cid cx16 xtpr lahflm bogomips : 5570.56

This is a relatively new Dell Optiplex desktop, whereas the other cpuinfo I posted earlier was an ancient NoName, both running Suse 9.3-kernel 2.6.x (latest patches applied).

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