Power-Mgt (Was: Re: cvs commit: src/sys/i386/cpufreq est.c )

[Kris Kennaway]

Poul-Henning Kamp wrote:
> In message <47DED21C.4070108 at FreeBSD.org>, Kris Kennaway writes:
> 
>> I think this is a great idea, but one of the big problems is probably 
>> going to be dealing with hardware quirks.  e.g. we can't even enable 
>> powerd by default because e.g. acpi_throttle hangs on some systems.  It 
>> might be tricky to get power management to the stage where it works for 
>> everyone and can be done automatically.
> 
> I'd expect that this will improve over time, just like all other
> technologies from ISA to PCI bus implementations did.
> 
> But yes, it will take time & effort, but given the current
> cleantech/greentech buzz, I think we'd better get moving.

Yeah, absolute worst case is we can make progress in automatic 
deployment by whitelisting.

What SoC projects can you think of in this arena?

Kris