Andrea Grandi wrote:
> Anyway, here is the result of powertop execution on my N900:
> http://pastebin.ca/1624111
>
> I hope it can help you to understand what's happening :)
Copy paste from the link above:
C# | Ratio | Avg/dura | Frequency | Ratio
--------+--------+----------+-----------+--------+
C0 | 27.3% | | 600 MHz | 19.1% |
C1 | 0.0% | 0.2ms | 550 MHz | 0.0% |
C2 | 8.8% | 3.0ms | 500 MHz | 21.8% |
C3 | 63.7% | 34.2ms | 250 MHz | 59.1% |
C4 | 0.1% | 6.0ms |
Was that an idle device? It really doesn't look like that. Here's a same
set from my idle device:
C# | Ratio | Avg/dura | Frequency | Ratio
--------+--------+----------+-----------+--------+
C0 | 0.7% | | 600 MHz | 0.0% |
C1 | 0.0% | | 550 MHz | 0.0% |
C2 | 0.2% | 1.2ms | 500 MHz | 0.0% |
C3 | 99.2% | 211.0ms | 250 MHz | 100.0% |
C4 | 0.0% | |
C-state is the sleep state of the CPU (afaik) and the frequency is the
Mhz the cpufreq chooses the run the device based on the cpu load. I
don't know what it takes to get to C4.
--
Tuomas
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