On Wed, Apr 08, 2009 at 07:44:01PM +0300, Igor Stoppa wrote: > That might be the outcome, but it should be simply because those parts > which are not in use are idle and therefore can enter spontaneously into > a low power state. You might want to read the Android wakelock thread here - this comes from Android and has been gone over in some detail in the threads generated from their wakelock stuff. Essentially what they are doing is exactly what you suggest, they've identified that suspend is a low power state and make every effort to enter it as often as possible, including when on a call. Clearly there are some issues with this approach but the Android guys did feel that entering suspend was worthwhile for them, especially since their users are able to download applications to the phone. Besides, no matter how low the power drain from your CPU when fully gated and at the lowest DVFS setting it's still possible to get a lower power drain since the CPU is going to be burning something and the regulators providing the supply to it are going to be burning something. In most cases it's going to be peanuts - it certainly will be in the phone use case where you've got radios going. _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
