Dr. David Kirkby wrote:
>> i have a core2 duo intel laptop running indiana and
>> after seeing messages like:
>> Nov 8 20:23:43 saturn cpudrv: [ID 495817 kern.info]
>> NOTICE:
>> cpudrv_pm_set_topspeed: instance 1: has new max power
>> of 1833 MHz
>> in dmesg, i was wondering if there is a way to force
>> the processor to
>> run at a lower frequency from within solaris
>>
>> nacho
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>> opensolaris-discuss mailing list
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>>
>
> That would be useful.
>
> Also useful would be a message when the speed is reduced. I get messages
> like:
>
> cpudrv: [ID 495817 kern.info] NOTICE: cpudrv_pm_set_topspeed: instance 1: has
> new max power of 2000 MHz
>
> but dont see any if the speed is reduce - I've no idea if it does reduce.
>
>
> This message posted from opensolaris.org
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>
Currently, there is no way to force a processor to a lower frequency. A
feature we'll be adding to Solaris soon.
As for what determining what frequencies your processors are running at,
you can find that out from the cpu_info kstat.
$ kstat -m cpu_info -s current_clock_Hz
module: cpu_info instance: 0
name: cpu_info0 class: misc
current_clock_Hz 2800000000
module: cpu_info instance: 1
name: cpu_info1 class: misc
current_clock_Hz 2800000000
Supported frequencies can be found using the cpu_info kstat too:
$ kstat -m cpu_info -s supported_frequencies_Hz
module: cpu_info instance: 0
name: cpu_info0 class: misc
supported_frequencies_Hz 2800000000:3200000000
module: cpu_info instance: 1
name: cpu_info1 class: misc
supported_frequencies_Hz 2800000000:3200000000
Mark
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