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SubjectRe: Incorrect CPU Frequency in /proc/cpuinfo
On Sat, Aug 27, 2005 at 09:31:48PM -0500, Patrick wrote:
> There is a problem with the display of CPU Frequency in /proc/cpuinfo.
> It displays the CPU Frequency correctly... until you change the speed
> manually with the kernel's frequency scaling. Before I do this, my
> frequency displayed in /proc/cpuinfo is: "3208.757", This is correct.
> Then I: "||echo 600000 /sys/devices/cpu/cpu0/cpufreq/scaling_setspeed"
> The file "scaling_setspeed" shows 600000, which is correct. My CPU does
> change to that speed (I've run tests before and after, and temperature,
> etc), yet /proc/cpuinfo shows no change, no matter what clock speed I
> set it to.
> ....
> The modules that were modprobed at the time:
>
> p4_clockmod

p4 clock modulation doesn't actually change the cpu frequency.

> speedstep-lib

This is a support library used by the other speedstep libs.
(It's meant to be pulled in as a dependancy
rather than directly modprobed)

Your CPU isn't supported by the speedstep drivers, so loading
this is pointless.

> freq_table

support lib for p4-clockmod.

Dave
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