Re: [linux-pm] suspend blockers & Android integration

From: Vitaly Wool
Date: Sun Jun 06 2010 - 03:52:16 EST


2010/6/5 Arve Hjønnevåg <arve@xxxxxxxxxxx>:
> On Sat, Jun 5, 2010 at 9:28 AM, Arjan van de Ven <arjan@xxxxxxxxxxxxx> wrote:
>> On Sat, 05 Jun 2010 11:54:13 +0200
>> Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:
>>
>>> On Fri, 2010-06-04 at 17:10 -0700, Arve Hjønnevåg wrote:
>>> > > Trusted processes are assumed to be sane and idle when there is
>>> > > nothing for them to do, allowing the machine to go into deep idle
>>> > > states.
>>> > >
>>> >
>>> > Neither the kernel nor our trusted user-space code currently meets
>>> > this criteria.
>>>
>>> Then both need fixing. Really, that's the only sane approach.
>>
>> fwiw... in MeeGo we're seeing quite good idle times (> 1 seconds)
>> without really bad hacks.
>>
>
> We clearly have different standards for what we consider good. We
> measure time suspended in minutes or hours, not seconds, and waking up
> every second or two causes a noticeable decrease in battery life on
> the hardware we have today.

Are you stating that the existing Android implementation enters the
suspended state for hours for any of the existing designs?

~Vitaly
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