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!cpuinfo

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

Syntax

!cpuinfo [Processor]

Parameters

Processor
Specifies the processor to be displayed. If this is omitted, all processors are displayed.

DLL

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.

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

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.

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.