smbios

smbios可以用来查看一些机器的硬件信息，比如CPU

# smbios -t 4
ID    SIZE TYPE
6     100  SMB_TYPE_PROCESSOR (processor)

  Manufacturer: GenuineIntel
  Version: Intel(R) Core(TM)2 Duo CPU     T5250  @ 1.50GHz
  Location Tag: None

  Family: 1 (other)
  CPUID: 0xbfebfbff000006fd
  Type: 3 (central processor)
  Socket Upgrade: 6 (none)
  Socket Status: Populated
  Processor Status: 1 (enabled)
  Supported Voltages: 1.4V
  External Clock Speed: Unknown
  Maximum Speed: 1500MHz
  Current Speed: 1500MHz
  L1 Cache: 10
  L2 Cache: 12
  L3 Cache: None

内存插槽

# smbios -t 16
ID    SIZE TYPE
43    15   SMB_TYPE_MEMARRAY (physical memory array)

  Location: 3 (system board or motherboard)
  Use: 3 (system memory)
  ECC: 3 (none)
  Number of Slots/Sockets: 2
  Memory Error Data: Not Supported
  Max Capacity: 4294967296 bytes

可以看出，这个笔记本有两个内存插槽，最大支持4G内存

内存

# smbios -t 17
ID    SIZE TYPE
44    42   SMB_TYPE_MEMDEVICE (memory device)

  Location Tag: DIMM 1

  Physical Memory Array: 43
  Memory Error Data: 65281
  Total Width: 64 bits
  Data Width: 64 bits
  Size: 1073741824 bytes
  Form Factor: 13 (SODIMM)
  Set: None
  Memory Type: 19 (DDR2)
  Flags: 0x80
        SMB_MDF_SYNC (synchronous)
  Speed: 1ns
  Device Locator: DIMM 1
  Bank Locator: Bank 0/1

ID    SIZE TYPE
45    42   SMB_TYPE_MEMDEVICE (memory device)

  Location Tag: DIMM 2

  Physical Memory Array: 43
  Memory Error Data: 65281
  Total Width: 64 bits
  Data Width: 64 bits
  Size: 1073741824 bytes
  Form Factor: 13 (SODIMM)
  Set: None
  Memory Type: 19 (DDR2)
  Flags: 0x80
        SMB_MDF_SYNC (synchronous)
  Speed: 1ns
  Device Locator: DIMM 2
  Bank Locator: Bank 2/3

笔记本上一共插了两条内存，每条1G，类型是DDR2

Linux对应的命令是dmidecode