查看服务器内存使用情况（服务器怎么查看剩余内存多少）

1.查看内存槽位内存大小

sudo dmidecode|grep -P -A5 "Memory\s+Device"|grep Size|grep -v Range

可以看到内存的频率及槽位位置

dmidecode -t 17

2.查看服务器最大支持内存容量

sudo dmidecode|grep -P 'Maximum\s+Capacity'

Maximum Capacity: 1536 GB

sudo dmidecode -t 16

# dmidecode 3.3

Getting SMBIOS data from sysfs.

SMBIOS 2.7 present.

Handle 0x1000, DMI type 16, 23 bytes

Physical Memory Array

Location: System Board Or Motherboard

Use: System Memory

Error Correction Type: Multi-bit ECC

Maximum Capacity: 1536 GB

Error Information Handle: Not Provided

Number Of Devices: 24

3.查看内存速率

sudo dmidecode|grep -A16 "Memory Device"|grep 'Speed'

Speed: 1600 MT/s

Speed: 1600 MT/s

Speed: 1600 MT/s

Speed: 1600 MT/s

Speed: 1600 MT/s

Speed: 1600 MT/s

Speed: 1600 MT/s

Speed: 1600 MT/s

Speed: 1600 MT/s

Speed: 1600 MT/s

Speed: 1600 MT/s

Speed: 1600 MT/s

Speed: Unknown

Speed: Unknown

Speed: Unknown

Speed: Unknown

Speed: Unknown

Speed: Unknown

Speed: Unknown

Speed: Unknown

Speed: Unknown

Speed: Unknown

Speed: Unknown

Speed: Unknown