Tejun Heo wrote:
Kristen Carlson Accardi wrote:
Hi,
This series of patches enables Aggressive Link Power Management for AHCI
devices, as documented in the AHCI spec. On my laptop (a Lenovo X60), this
saves me a full watt of power. On other systems, reported power savings
range from .5-1.5 Watts. It has been tested by the kind folks at #powertop
with similar results. Please give it a try and let me know what you think.
I'm not sure about this. We need better PM framework to support
powersaving in other controllers and some ahcis don't save much when
only link power management is used, they need to be turned off
A better PM framework would definitely be nice :)
completely && I don't think scsi sysfs is the right place to export this
interface.
That's about the only place we have right now.
Jeff
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