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当 dmidecode 显示“速度：未知”且 lshw 挂起时，如何获取内存速度

tag-icon • tag-icon linux memory debian-squeeze
当 dmidecode 显示“速度：未知”且 lshw 挂起时，如何获取内存速度

我想获得内存速度信息，但dmidecode -t memory它却显示Speed: Unknown并lshw打印出字符串DMI，然后什么也不做，直到我将其杀死。

还有其他方法可以获取这些信息吗？或者一些神奇的参数lshw可以dmidecode强制它们真正做它们应该做的事情？

root@server:~# dmidecode -t memory
# dmidecode 2.9
SMBIOS 2.5 present.

Handle 0x0027, DMI type 16, 15 bytes
Physical Memory Array
        Location: System Board Or Motherboard
        Use: System Memory
        Error Correction Type: None
        Maximum Capacity: 8 GB
        Error Information Handle: Not Provided
        Number Of Devices: 2

Handle 0x0029, DMI type 17, 27 bytes
Memory Device
        Array Handle: 0x0027
        Error Information Handle: Not Provided
        Total Width: 64 bits
        Data Width: 64 bits
        Size: 2048 MB
        Form Factor: DIMM
        Set: None
        Locator: DIMM A1
        Bank Locator: BANK0
        Type: Other
        Type Detail: Synchronous
        Speed: Unknown
        Manufacturer: Manufacturer0
        Serial Number: SerNum0
        Asset Tag: AssetTagNum0
        Part Number: PartNum0

Handle 0x002B, DMI type 17, 27 bytes
Memory Device
        Array Handle: 0x0027
        Error Information Handle: Not Provided
        Total Width: 64 bits
        Data Width: 64 bits
        Size: 4096 MB
        Form Factor: DIMM
        Set: None
        Locator: DIMM B1
        Bank Locator: BANK1
        Type: Other
        Type Detail: Synchronous
        Speed: Unknown
        Manufacturer: Manufacturer1
        Serial Number: SerNum1
        Asset Tag: AssetTagNum1
        Part Number: PartNum1

。

root@server:~# lshw -version
B.02.14
root@server:~# lshw
DMI

答案1

你可以使用dmesg它从内核中提取此类信息

root@server ~]# dmesg |grep -i memory |grep core
[    1.518759] nouveau  [     DRM] 0: core 208MHz shader 416MHz memory 100MHz voltage 1200mV fanspeed 100%
[    1.518762] nouveau  [     DRM] 1: core 460MHz shader 920MHz memory 400MHz voltage 1200mV fanspeed 100%
[    1.518764] nouveau  [     DRM] c: core 459MHz shader 918MHz memory 399MHz voltage 1200mV
[    2.141818] nouveau  [     DRM] 0: core 208MHz shader 416MHz memory 100MHz voltage 1200mV fanspeed 100%
[    2.141821] nouveau  [     DRM] 1: core 460MHz shader 920MHz memory 400MHz voltage 1200mV fanspeed 100%
[    2.141823] nouveau  [     DRM] c: core 459MHz shader 918MHz memory 399MHz voltage 1200mV

dmesg 适用于提取任何设备信息；即dmesg |grep -i scsi或dmesg |grep -i usb只是dmesg| more查看所有信息

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