23.3. 显示系统拓扑

流程

• 显示系统拓扑概述：

  $ numactl --hardware
  available: 4 nodes (0-3)
  node 0 cpus: 0 4 8 12 16 20 24 28 32 36
  node 0 size: 65415 MB
  node 0 free: 43971 MB
  [...]

• 要收集有关 CPU 架构的信息，如 CPU、线程、内核、插槽和 NUMA 节点的数量：

  $ lscpu
  Architecture:          x86_64
  CPU op-mode(s):        32-bit, 64-bit
  Byte Order:            Little Endian
  CPU(s):                40
  On-line CPU(s) list:   0-39
  Thread(s) per core:    1
  Core(s) per socket:    10
  Socket(s):             4
  NUMA node(s):          4
  Vendor ID:             GenuineIntel
  CPU family:            6
  Model:                 47
  Model name:            Intel(R) Xeon(R) CPU E7- 4870  @ 2.40GHz
  Stepping:              2
  CPU MHz:               2394.204
  BogoMIPS:              4787.85
  Virtualization:        VT-x
  L1d cache:             32K
  L1i cache:             32K
  L2 cache:              256K
  L3 cache:              30720K
  NUMA node0 CPU(s):     0,4,8,12,16,20,24,28,32,36
  NUMA node1 CPU(s):     2,6,10,14,18,22,26,30,34,38
  NUMA node2 CPU(s):     1,5,9,13,17,21,25,29,33,37
  NUMA node3 CPU(s):     3,7,11,15,19,23,27,31,35,39

• 查看系统的图形表示：

  # dnf install hwloc-gui
  # lstopo

  

• 查看详细文本输出：

  # dnf install hwloc
  # lstopo-no-graphics
  Machine (15GB)
    Package L#0 + L3 L#0 (8192KB)
      L2 L#0 (256KB) + L1d L#0 (32KB) + L1i L#0 (32KB) + Core L#0
          PU L#0 (P#0)
          PU L#1 (P#4)
         HostBridge L#0
      PCI 8086:5917
          GPU L#0 "renderD128"
          GPU L#1 "controlD64"
          GPU L#2 "card0"
      PCIBridge
          PCI 8086:24fd
            Net L#3 "wlp61s0"
      PCIBridge
          PCI 8086:f1a6
      PCI 8086:15d7
  Net L#4 "enp0s31f6"