Linux 查看記憶體指令

Linux 查看記憶體(RAM)指令

Linux 如何查看 系統硬體 的 詳細記憶體(RAM)資訊

在 Linux 要查詢記憶體大小, 可以用下述指令:

• free
• free -m
• cat /proc/meminfo
  

  MemTotal:        8088504 kB
  MemFree:          337408 kB
  Buffers:          175136 kB
  Cached:          6873848 kB
  SwapCached:            0 kB
  Active:          4396244 kB
  Inactive:        3057212 kB

要查詢詳細的 RAM 規格, ex: DDR2、DDR3 .. 等, 可以用下述指令:

• sudo lshw
  

       *-memory
  description: System Memory
  physical id: 22
  slot: System board or motherboard
  size: 8GiB
  *-bank:0
  description: DIMM DDR3 Synchronous 1333 MHz (0.8 ns)
  product: 99U5403-034.A00G
  vendor: Kingston
  physical id: 0
  serial: 483C2FE
  slot: DIMM0
  size: 4GiB
  width: 64 bits
  clock: 1333MHz (0.8ns)

• dmidecode -t 17 # 等同 dmidecode --type memory、 dmidecode --type 17
  

  # dmidecode 2.11
  SMBIOS 2.6 present.

  Handle 0x0022, DMI type 16, 15 bytes
  Physical Memory Array
  Location: System Board Or Motherboard
  Use: System Memory
  Error Correction Type: None
  Maximum Capacity: 32 GB
  Error Information Handle: No Error
  Number Of Devices: 2

  Handle 0x0025, DMI type 17, 28 bytes
  Memory Device
  Array Handle: 0x0022
  Error Information Handle: No Error
  Total Width: 64 bits
  Data Width: 64 bits
  Size: 4096 MB
  Form Factor: DIMM
  Set: None
  Locator: DIMM0
  Bank Locator: BANK0
  Type: DDR3
  Type Detail: Synchronous
  Speed: 1333 MHz
  Manufacturer: Kingston
  Serial Number: 483C2FE
  Asset Tag: AssetTagNum0
  Part Number: 99U5403-034.A00G
  Rank: 2