Re: [Mactel-linux-devel] C4 state problem

[Ludovic R. <lud...@gm...>]

On 07/04/07, Sven Anders <an...@an...> wrote:
> For a start we take a look at the current available c-states:
>
> #> cat /proc/acpi/processor/CPU?/power
>
> active state:            C3
> max_cstate:              C8
> bus master activity:     00000000
> maximum allowed latency: 8000 usec
> states:
>     C1:                  type[C1] promotion[C2] demotion[--] latency[001]
> usage[00002590] duration[00000000000000000000]
>     C2:                  type[C2] promotion[C3] demotion[C1] latency[001]
> usage[00002086] duration[00000000000006795863]
>    *C3:                  type[C3] promotion[--] demotion[C2] latency[055]
> usage[00003633] duration[00000000000009200376]

I don't know if it is of any interest but I have a different result:

$ cat /proc/acpi/processor/CPU0/power
active state:            C2
max_cstate:              C8
bus master activity:     00000000
states:
    C1:                  type[C1] promotion[C2] demotion[--]
latency[000] usage[00000010] duration[00000000000000000000]
   *C2:                  type[C2] promotion[--] demotion[C1]
latency[001] usage[01409563] duration[00000000005313483434]

I have a MacBook Pro with Core1Duo and using the Debian Etch
2.6.18-4-686 kernel (no additional patch)

Bye

-- 
  Dr. Ludovic Rousseau