Ubuntu 20.04 查看内存信息

• 输入命令

dmidecode -t memory

输出如下：

# dmidecode 3.2
Getting SMBIOS data from sysfs.
SMBIOS 2.8 present.

Handle 0x000D, DMI type 16, 23 bytes
Physical Memory Array
	Location: System Board Or Motherboard
	Use: System Memory
	Error Correction Type: None
	Maximum Capacity: 32 GB
	Error Information Handle: Not Provided
	Number Of Devices: 4

Handle 0x000E, DMI type 17, 40 bytes
Memory Device
	Array Handle: 0x000D
	Error Information Handle: Not Provided
	Total Width: 64 bits
	Data Width: 64 bits
	Size: 4096 MB
	Form Factor: SODIMM
	Set: None
	Locator: DIMM0
	Bank Locator: BANK 0
	Type: DDR3
	Type Detail: Synchronous
	Speed: 1600 MT/s
	Manufacturer: Samsung
	Serial Number: 1325C91C
	Asset Tag: Unknown
	Part Number: M471B5173EB0-YK0  
	Rank: 1
	Configured Memory Speed: 1600 MT/s
	Minimum Voltage: Unknown
	Maximum Voltage: Unknown
	Configured Voltage: Unknown

Handle 0x000F, DMI type 17, 40 bytes
Memory Device
	Array Handle: 0x000D
	Error Information Handle: Not Provided
	Total Width: Unknown
	Data Width: Unknown
	Size: No Module Installed
	Form Factor: DIMM
	Set: None
	Locator: DIMM1
	Bank Locator: BANK 1
	Type: Unknown
	Type Detail: Unknown
	Speed: Unknown
	Manufacturer: Empty
	Serial Number: Empty
	Asset Tag: Unknown
	Part Number: Empty
	Rank: Unknown
	Configured Memory Speed: Unknown
	Minimum Voltage: Unknown
	Maximum Voltage: Unknown
	Configured Voltage: Unknown

Handle 0x0010, DMI type 17, 40 bytes
Memory Device
	Array Handle: 0x000D
	Error Information Handle: Not Provided
	Total Width: 64 bits
	Data Width: 64 bits
	Size: 8192 MB
	Form Factor: SODIMM
	Set: None
	Locator: DIMM2
	Bank Locator: BANK 2
	Type: DDR3
	Type Detail: Synchronous
	Speed: 1600 MT/s
	Manufacturer: Kingston
	Serial Number: E125C76F
	Asset Tag: Unknown
	Part Number: ACR16D3LS1KNG/8G  
	Rank: 2
	Configured Memory Speed: 1600 MT/s
	Minimum Voltage: Unknown
	Maximum Voltage: Unknown
	Configured Voltage: Unknown

Handle 0x0011, DMI type 17, 40 bytes
Memory Device
	Array Handle: 0x000D
	Error Information Handle: Not Provided
	Total Width: Unknown
	Data Width: Unknown
	Size: No Module Installed
	Form Factor: DIMM
	Set: None
	Locator: DIMM3
	Bank Locator: BANK 3
	Type: Unknown
	Type Detail: Unknown
	Speed: Unknown
	Manufacturer: Empty
	Serial Number: Empty
	Asset Tag: Unknown
	Part Number: Empty
	Rank: Unknown
	Configured Memory Speed: Unknown
	Minimum Voltage: Unknown
	Maximum Voltage: Unknown
	Configured Voltage: Unknown