RFC: powerd algorithms enhancements

[Nenhum_de_Nos]

On Tue, November 11, 2008 3:20 am, Ian Smith wrote:
> On Mon, 10 Nov 2008, Nenhum_de_Nos wrote:
>  > as all you are talking about the subject, and I read all messages, is
>  > there any module to load and make my AthlonXP 1700+ use less power ?
>  >
>  > running 7-STABLE, just a file server. any acpi-stuff I could enable
> would
>  > be great, as I just use all its power when compiling ...
>
> What does 'sysctl hw.acpi dev.cpu' have to say?

[root at xxx ~]# sysctl hw.acpi
hw.acpi.supported_sleep_state: S1 S4 S5
hw.acpi.power_button_state: S5
hw.acpi.sleep_button_state: S1
hw.acpi.lid_switch_state: NONE
hw.acpi.standby_state: S1
hw.acpi.suspend_state: S3
hw.acpi.sleep_delay: 1
hw.acpi.s4bios: 1
hw.acpi.verbose: 0
hw.acpi.disable_on_reboot: 0
hw.acpi.handle_reboot: 0
hw.acpi.reset_video: 0
hw.acpi.thermal.min_runtime: 0
hw.acpi.thermal.polling_rate: 10
hw.acpi.thermal.user_override: 0
hw.acpi.thermal.tz0.temperature: 43.0C
hw.acpi.thermal.tz0.active: -1
hw.acpi.thermal.tz0.passive_cooling: 1
hw.acpi.thermal.tz0.thermal_flags: 0
hw.acpi.thermal.tz0._PSV: 66.0C
hw.acpi.thermal.tz0._HOT: -1
hw.acpi.thermal.tz0._CRT: 70.0C
hw.acpi.thermal.tz0._ACx: 66.0C -1 -1 -1 -1 -1 -1 -1 -1 -1
hw.acpi.thermal.tz0._TC1: 4
hw.acpi.thermal.tz0._TC2: 3
hw.acpi.thermal.tz0._TSP: 60
hw.acpi.cpu.cx_lowest: C1
[root at xxx ~]# sysctl dev.cpu
dev.cpu.0.%desc: ACPI CPU
dev.cpu.0.%driver: cpu
dev.cpu.0.%location: handle=\_PR_.CPU0
dev.cpu.0.%pnpinfo: _HID=none _UID=0
dev.cpu.0.%parent: acpi0
dev.cpu.0.cx_supported: C1/0 C2/90 C3/900
dev.cpu.0.cx_lowest: C1
dev.cpu.0.cx_usage: 100.00% 0.00% 0.00%
[root at xxx ~]#

if it rings any bells :)

I really forgot the option of lowering the freq the cpu works. but this
(as said in this thread) must come together with cpu vcc lowering ... Am I
wrong ?

and as I remembered I have an imap server and squirrelmail in it (that was
slow on a PII 333MHz), I think that changing cpu freq would be great
(unfortunatelly impossible as said)

well, anything to make it draw less power :)

thanks to you all,

matheus

-- 
We will call you cygnus,
The God of balance you shall be