Re: ACPI with AMD64
I have same cpu but with home brew kernel 2.6.15.1 (I don't see what you have)
> cat /proc/acpi/processor/CPU0/throttling
> <not supported>
funny, I only have a CPU1 there, even though I only have, euh ... 1 cpu.
(Wel... maybe not so funny ;o)
Anyway it also says <not supported> there.
But, I seem to remember the proc interface for this was somehow depricated.
Check if you seen anything in /sys (obviously, you should have the sys
filesystem mounted):
cat /sys/devices/system/cpu/cpu0/cpufreq/stats/time_in_state
2000000 292495
1800000 6574
1000000 704969
I surmise from this that on my system most of the time is spent at 1 GHz.
Don't know what the time scale is though (bogomips ?)
Cheers,
Ernest.
On Friday 10 February 2006 12:09, Thimo Eichstaedt wrote:
> Hi folks,
>
> I have an Athlon AMD 64 3000 MHz and want to use its powersaving
> futures. Therefore I am using PowerNow with the powernow_k8 module.
> This is working great.
> Additionally it should be possible to profit from the power states of
> the processor (C1...C8). But the ACPI module tells me that only C1 is
> availabe:
>
> Modules loaded: processor, powernow_k8, cpufreq_userspace
> dmesg output when loading processor.ko module:
> ...
> ACPI: CPU0 (power states: C1[C1])
> ...
>
> cat /proc/acpi/processor/CPU0/power:
> active state: C1
> max_cstate: C8
> bus master activity: 00000000
> states:
> *C1: type[C1] promotion[--] demotion[--]
> latency[000] usage[03559864]
>
> cat /proc/acpi/processor/CPU0/throttling
> <not supported>
>
> Is this correct or what have I done wrong ? Can anybody with a AMD64
> processor perhaps post its proc output ?
>
> Thanks
> Thimo
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