[ltp] What's cutting my CPU speed in half?

Daniel Maier linux-thinkpad@linux-thinkpad.org
Thu, 16 Nov 2006 17:31:37 +0100


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On Thu, Nov 16, 2006 at 09:11:53AM -0700, alhaz@xmission.com wrote:
>=20
>   Some thinkpads, when booted w/o AC power plugged in, boot at a=20
> reduced speed.
>=20
>   You can't switch it back up to full speed w/o the cpufreq drivers &=20
> apps - unless you want to reboot with AC plugged in.
This is a BIOS setting which can be set to customized for both,
battery and AC.

Have a look at:
/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor and
scaling_max_freq.

Regards, Daniel.

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