hw.cpu_topology.tree: 
\-PACKAGE MEMBERS: cpus(0-7) 
  \-CHIP ID 0: cpus(0-7) 
    |-CORE ID 0: cpus(0, 4-4) 
    | |-THREAD ID 0: cpus(0-0) 
    | \-THREAD ID 1: cpus(4-4) 
    |-CORE ID 1: cpus(1, 5-5) 
    | |-THREAD ID 0: cpus(1-1) 
    | \-THREAD ID 1: cpus(5-5) 
    |-CORE ID 2: cpus(2, 6-6) 
    | |-THREAD ID 0: cpus(2-2) 
    | \-THREAD ID 1: cpus(6-6) 
    \-CORE ID 3: cpus(3, 7-7) 
      |-THREAD ID 0: cpus(3-3) 
      \-THREAD ID 1: cpus(7-7) 

hw.cpu_topology.level_description: 0 - thread; 1 - core; 2 - socket; 3 - anything
hw.cpu_topology.members: cpus(0-7)
hw.cpu_topology.cpu0.physical_id: 0
hw.cpu_topology.cpu0.physical_siblings: cpus(0-7)
hw.cpu_topology.cpu0.core_id: 0
hw.cpu_topology.cpu0.core_siblings: cpus(0, 4-4)
hw.cpu_topology.cpu1.physical_id: 0
hw.cpu_topology.cpu1.physical_siblings: cpus(0-7)
hw.cpu_topology.cpu1.core_id: 1
hw.cpu_topology.cpu1.core_siblings: cpus(1, 5-5)
hw.cpu_topology.cpu2.physical_id: 0
hw.cpu_topology.cpu2.physical_siblings: cpus(0-7)
hw.cpu_topology.cpu2.core_id: 2
hw.cpu_topology.cpu2.core_siblings: cpus(2, 6-6)
hw.cpu_topology.cpu3.physical_id: 0
hw.cpu_topology.cpu3.physical_siblings: cpus(0-7)
hw.cpu_topology.cpu3.core_id: 3
hw.cpu_topology.cpu3.core_siblings: cpus(3, 7-7)
hw.cpu_topology.cpu4.physical_id: 0
hw.cpu_topology.cpu4.physical_siblings: cpus(0-7)
hw.cpu_topology.cpu4.core_id: 0
hw.cpu_topology.cpu4.core_siblings: cpus(0, 4-4)
hw.cpu_topology.cpu5.physical_id: 0
hw.cpu_topology.cpu5.physical_siblings: cpus(0-7)
hw.cpu_topology.cpu5.core_id: 1
hw.cpu_topology.cpu5.core_siblings: cpus(1, 5-5)
hw.cpu_topology.cpu6.physical_id: 0
hw.cpu_topology.cpu6.physical_siblings: cpus(0-7)
hw.cpu_topology.cpu6.core_id: 2
hw.cpu_topology.cpu6.core_siblings: cpus(2, 6-6)
hw.cpu_topology.cpu7.physical_id: 0
hw.cpu_topology.cpu7.physical_siblings: cpus(0-7)
hw.cpu_topology.cpu7.core_id: 3
hw.cpu_topology.cpu7.core_siblings: cpus(3, 7-7)