[maemo-developers] suspendprocess - poor man's power save

[From: Jan Knutar]

On Sunday 19 September 2010, Andrew Flegg wrote:
> On Sun, Sep 19, 2010 at 17:58, Robin Burchell <viroteck at viroteck.net> 
wrote:
> > Anyway: this was pretty much in keeping with my idea: move it into
> > the task switcher (hildon-desktop/other) so that applications which
> > are moved to background are stopped (unless they signal for
> > whatever reason that they need to be kept running, but I'm not even
> > sure that is necessary: if you really need to do background
> > processing constantly, why do it in a GUI application?)
> 
> I suggested something similar three years ago (wow, Maemo's old ;-))
> and the reaction was less favourable:

I tried doing something similar on Maemo 4, except my objective was to 
SIGSTOP processes for 5-30 seconds at a time during heavy swap load so 
that the tablet didn't blink into the blue Nokia logo and lose all 
unsaved work. 
Oddly what I discovered was that even with an unloaded system, stopping 
apps usually hung the entire thing, and upon sending SIGCONT, I was 
greeted by the "$APP is not responding blah blah", quickly followed by 
the "now responding" message..