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cpufreq throttling driver

DISCUSSION Matthieu CASTET 2 participants 2 messages May 16, 2007 – May 17, 2007

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Hi,

I have a desktop cpu supporting only throttling (no C-state and no P-state (acpi-cpufreq refuse to load)).

Does it make sense to use throttling to save some power ?

If yes why aren't there a cpufreq driver for managing throttling ? That way governor could be used with throttling.

Does it make sense ?

Thanks

Matthieu

#1 lore raw
Quoted 6 lines · Matthieu CASTET

Hi,

I have a desktop cpu supporting only throttling (no C-state and no P-state (acpi-cpufreq refuse to load)).

Does it make sense to use throttling to save some power ?

Not really. You can save a little power but you will lose a lot of performance, making your system less energy-efficient.

Quoted 1 line

If yes why aren't there a cpufreq driver for managing throttling ?

It's called p4-clockmod. Don't use it. If you want to save power, get a new CPU.

Wes Felter - [email protected]