[maemo-developers] ARM/DSP power consumption

[From: fireun ukobach]

On a similar note, what kind of latency via network response can I
expect at the linux app level?

The application in mind here is near real-time data collection and control.
Accurate timing is more critical than low latency response. Is the api
level clock accurate to the ms? better? Language best choice?

thanks in advance,
-=f


On 9/12/07, Simon Pickering <S.G.Pickering at bath.ac.uk> wrote:
> Hello all,
>
> This is probably a question for Nokia, though someone else may have looked into
> it.
>
> Does anyone have figures for the power consumption of combinations of running
> the DSP and the ARM? What I'd like to work out is whether the DSP could be used
> for any old task (assuming it has the same or lower power consumption than the
> ARM and the same or better performance) or whether it should be kept for those
> tasks that require its specific abilities or just when the ARM needs to offload
> some processing to keep responsive or to be able to decode large video, etc.
>
> Obviously the DSP processor is sitting there doing not a lot (unless one is
> listening to music) for a lot of the time; what's the idle consumption compared
> with the 100% load power consumption (if they are close it may as well be doing
> work all the time, etc.)?
>
> Thanks,
>
>
> Simon
>
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