[Om2008.9] AtChat talking every second to SIM

Matthias Apitz guru at unixarea.de
Tue Oct 21 15:48:50 CEST 2008

El día Tuesday, October 21, 2008 a las 12:24:57PM +0200, Cédric Berger escribió:

> > every second (or two, as the case may be) might be a bit extreme, but
> > this is just getting the signal quality.
> >
> I also noticed that without sim card, it keeps trying to communicate
> with it continuously. I do not know if it is resource consuming ? (is
> gsm off in such a case ? Or does it suck battery a little more ?)
> Polling SIM module wihtout card so often is not needed, especially
> since we cannot change SIM card without taking battery out (granted it
> could be done when plugged in)

On an idle FR with SIM and registered to network this polling costs
around 3.1-3.5% of CPU:

Cpu(s):  4.2%us,  2.4%sy,  0.0%ni, 93.5%id,  0.0%wa,  0.0%hi,  0.0%si, 0.0%st
  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND                          
 1461 root      20   0 82060  23m  15m S  3.1 19.3   1:22.81 qpe                  

I was wondering if this could be configured somewhere...


Matthias Apitz
Manager Technical Support - OCLC GmbH
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