[PATCH] AHCI powersaving and port-stopping (2.6.22-rc4)

Arjan van de Ven arjan at linux.intel.com
Mon Jun 11 13:13:19 PDT 2007


Török Edvin wrote:
> On 6/11/07, Kristen Carlson Accardi <kristen.c.accardi at intel.com> wrote:
>> > -
>>
>> I've updated the hardware based patches and posted to the mailing list -
>> they do indeed save anywhere from .6-1.5 watts depending on the system,
>> on my X60 they save about a watt.  I don't think that a hardware based
>> solution is irrelevant at all - it will usually be able to make faster
>> and more accurrate decisions about when to place the link into lower
>> power state than software could.
>>
> 
> Is there any chance non-AHCI chipsets will be supported too in the
> future? Like an Intel ICH7-M...

I thought ICH7M did support ahci...  but maybe I'm very wrong there...



More information about the Power mailing list