illumos gate

The original psrinfo would print the socket type on CPUs where that information was available:

$ psrinfo -pv
The physical processor has 2 virtual processors (0 1)
  x86 (AuthenticAMD 20F12 family 15 model 33 step 2 clock 2200 MHz)
        Dual Core AMD Opteron(tm) Processor 275 [ Socket: 940 ]
The physical processor has 2 virtual processors (2 3)
  x86 (AuthenticAMD 20F12 family 15 model 33 step 2 clock 2200 MHz)
        Dual Core AMD Opteron(tm) Processor 275 [ Socket: 940 ]

The new psrinfo does not:

$ psrinfo -pv
The physical processor has 2 virtual processors (0-1)
  x86 (AuthenticAMD 20F12 family 15 model 33 step 2 clock 2200 MHz)
        Dual Core AMD Opteron(tm) Processor 275
The physical processor has 2 virtual processors (2-3)
  x86 (AuthenticAMD 20F12 family 15 model 33 step 2 clock 2200 MHz)
        Dual Core AMD Opteron(tm) Processor 275