How do I get the PC's Processor speed?

[Jeff McNeil]

http://www.linuxhardware.org/features/01/10/09/1514233.shtml

AMD has historically used model numbers that are slightly higher than  
the actual clock speed.   I have a 2300 that runs at 1.9.

-Jeff

On Nov 6, 2007, at 3:27 PM, Chris Mellon wrote:

> On Nov 6, 2007 2:12 PM,  <kyosohma at gmail.com> wrote:
>> On Nov 6, 1:35 pm, "Chris Mellon" <arka... at gmail.com> wrote:
>>
>>> On Nov 6, 2007 1:18 PM,  <kyoso... at gmail.com> wrote:
>>>
>>>
>>>
>>>> Hi,
>>>
>>>> We use a script here at work that runs whenever someone logs into
>>>> their machine that logs various bits of information to a  
>>>> database. One
>>>> of those bits is the CPU's model and speed. While this works in  
>>>> 95% of
>>>> the time, we have some fringe cases where the only thing returned  
>>>> is
>>>> the processor name. We use this data to help us decide which PCs  
>>>> need
>>>> to be updated, so it would be nice to have the processor speed in  
>>>> all
>>>> cases.
>>>
>>>> Currently, this script is run on Windows boxes only, most of which
>>>> have Windows XP on them. Right now I am having Python check the
>>>> following registry key for the CPU info: HKEY_LOCAL_MACHINE 
>>>> \HARDWARE\
>>>> \DESCRIPTION\\System\\CentralProcessor\\0
>>>
>>>> I've also used Tim Golden's WMI module like so:
>>>
>>>> <code>
>>>
>>>> import wmi
>>>> c = wmi.WMI()
>>>> for i in c.Win32_Processor ():
>>>>    cputype = i.Name
>>>
>>>> </code>
>>>
>>>> On the problem PCs, both of these methods give me the same  
>>>> information
>>>> (i.e. only the processor name). However, if I go to "System
>>>> Properties" and look at the "General" tab, it lists the CPU name  
>>>> and
>>>> processor speed. Does anyone else know of another way to get at  
>>>> this
>>>> information?
>>>
>>> You'd want the MaxClockSpeed property. There's a few other clock  
>>> speed
>>> properties as well, seehttp://msdn2.microsoft.com/en-us/library/aa394373.aspx 
>>> .
>>>
>>> MSDN should always be your first stop with WMI questions, by the  
>>> way.
>>
>> That's true, but I didn't just use WMI to try to get this  
>> information.
>> I also looked in the registry...although I forgot to mention that I
>> used the _winreg module to do so.
>>
>> I did see that when I looked at Microsoft's Python scripts here:
>> http://www.microsoft.com/technet/scriptcenter/scripts/python/pyindex.mspx?mfr=true
>>
>> MaxClockSpeed doesn't report the speed the same way MS does in the
>> System Properties, but I suppose I can work around that. Although  
>> this
>> will make AMD 3800+ procs look much slower (i.e. 2.4 Ghz in this
>> case).
>>
>>
>
> System Properties probably uses current clock speed, which will
> usually be lower than max clock speed on modern processors, which
> scale their speed with load.
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