CPUFreq HAL [PSARC/2007/679 FastTrack timeout 12/12/2007]

Bart Smaalders bart.smaalders at sun.com
Wed Dec 5 17:33:33 PST 2007


Anup Pemmaiah wrote:
> Artem Kachitchkine wrote:
>>
>>> Each processor will have a cpu device object,
>>
>> What happens when CPUs are DR removed/added ?
> The associated device objects should get removed.
>>
>>> Set* methods will not be called on each processor. It applies for all 
>>> the processors.
>>
>> Interfaces and methods are associated with objects. So what you're 
>> saying is, even though a method is called on a particular CPU object, 
>> it will affect all CPUs?
> The CPUFreq interface is associated with the "computer" device object, 
> similar to system power management interface. Since it is global there 
> will be just one method call.
> 
> Anup
>>
>> -Artem
> 

It seems to me that multi-socket machines need to support
different speeds on different sockets.

- Bart


-- 
Bart Smaalders			Solaris Kernel Performance
barts at cyber.eng.sun.com		http://blogs.sun.com/barts



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