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!cpuinfo

The !cpuinfo extension displays detailed information about the target computer's CPU.

Syntax in Windows 2000


    !cpuinfo 

Syntax in Windows XP and later


    !cpuinfo [Processor] 

Parameters

Processor

(Windows XP and later) Specifies the processor to be displayed. If this is omitted, all processors are displayed.

DLL

Windows 2000

Kdextx86.dll

Windows XP and later

Kdexts.dll

 

Additional Information

For more information about debugging multiprocessor computers, see Multiprocessor Syntax.

Remarks

The !cpuinfo extension command can be used when performing local kernel debugging. When this extension is used on a Windows 2000 target computer, it displays information about all processors.

Here is an example generated by an x86-based processor:


kd> !cpuinfo
CP F/M/S Manufacturer  MHz Update Signature Features 
 0 6,1,9 GenuineIntel  198 000000d200000000 000000ff 

Here is an example generated by an Itanium-based processor:


kd> !cpuinfo
CP M/R/F/A Manufacturer     SerialNumber     Features         Speed
 0 2,1,31,0 GenuineIntel     0000000000000000 0000000000000001 1300 Mhz
 1 2,1,31,0 GenuineIntel     0000000000000000 0000000000000001 1300 Mhz

The CP column indicates the processor number. The Manufacturer column specifies the processor manufacturer. The MHz or Speed column specifies the speed, in MHz, of the processor, if it is available.

For an x86-based processor or an x64-based processor, the F column displays the processor family number, the M column displays the processor model number, and the S column displays the stepping size.

For an Itanium-based processor, the M column displays the processor model number, the R column displays the processor revision number, the F column displays the processor family number, and the A column displays the architecture revision number.

Other columns will also appear, depending on your machine's specific architecture.

For details on how to interpret specific values for each entry, as well as any additional columns, consult the processor manual.

 

 

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